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• A much lower reputation (100 on all sites instead of 2000 on large sites or 1000 on smaller and beta sites) is needed to freely edit a community wiki post originally made by someone else. ¹
• Voting on a community wiki post does not affect the author's reputation, and downvoting a community wiki answer will not deduct 1 reputation from the voter.
• Accepting an answer marked as community wiki does not affect its original author's reputation, and does not give +2 to the question author.
• Bounties awarded to answer marked as community wiki still give reputation to the original author.
• Edits suggested by users with less than 100 reputation will still provide +2 reputation to the editor when approved.
• The original author still gets badges based on community posts.
• The original author keeps the reputation gained (or lost) before their post entered community mode.
  • If an author made their answer community wiki as part of a grace period edit, the time the answer was made community wiki will be logged as the time of the original edit, and any reputation changes from the answer in the time between the original edit and grace period edit will be removed. (This may initially appear to not be so, but it will be removed once the next reputation recalculation happens.)
• The original author still receives notifications for substantial edits, suggested edits, and comments on the post.
• The user listed in the author box need not be the original author. Rather, it is the user with the highest percentage of authorship in the final revision, determined by the number of lines inserted or deleted, with a bonus (factor of 2) for the original author. Note that the name shown is calculated upon each edit and cached, so if the user later changes their display name, their previous name will still be displayed until the post is edited again.

• A much lower reputation (100 on all sites instead of 2000 on large sites or 1000 on smaller and beta sites) is needed to freely edit a community wiki post originally made by someone else. ¹
• Voting on a community wiki post does not affect the author's reputation, and downvoting a community wiki answer will not deduct 1 reputation from the voter.
• Accepting an answer marked as community wiki does not affect its original author's reputation, and does not give +2 to the question author.
• Bounties awarded to answer marked as community wiki still give reputation to the original author.
• Edits suggested by users with less than 100 reputation will still provide +2 reputation to the editor when approved.
• The original author will still be awarded regular (non-tag) badges from community wiki posts. However, community wiki answers are ignored when calculating progress toward tag badges, and a user may have a tag badge revoked if they no longer meet its criteria due to past answers of theirs being converted to community wiki and thus no longer counting toward their progress.
• The original author keeps the reputation gained (or lost) before their post entered community mode.
  • If an author made their answer community wiki as part of a grace period edit, the time the answer was made community wiki will be logged as the time of the original edit, and any reputation changes from the answer in the time between the original edit and grace period edit will be removed. (This may initially appear to not be so, but it will be removed once the next reputation recalculation happens.)
• The original author still receives the same notifications from the post as they otherwise would (e.g., from substantial edits, suggested edits, and comments on the post). There is no way to opt out of these notifications short of requesting to be dissociated from the post, which is permanent and has other implications as detailed there.
• The user listed in the author box need not be the original author. Rather, it is the user with the highest percentage of authorship in the final revision, determined by the number of lines inserted or deleted, with a bonus (factor of 2) for the original author. Note that the name shown is calculated upon each edit and cached, so if the user later changes their display name, their previous name will still be displayed until the post is edited again.

• Rollbacks cannot remove community wiki status.

• The Community User⁴ might appear as the last editor of a post, even a non-wiki post. This happens either 1. when an edit by an anonymous user is approved, or 2. when it randomly pokes old unanswered questions so they get some attention. In the latter case, this will only be shown in certain overviews and on a notice on the question, and not an actual revision in the revision history.

• If you are looking for an example community wiki post, see this question and this answer. They are all community wikis. You can easily identify community wikis by the text "community wiki" where the author's profile picture should be.

¹ The original author of a community wiki post can always edit it, even if they have <100 reputation. Other edits made by users with less than 100 reputation must be reviewed in the usual way before being applied.

• Rollbacks cannot remove community wiki status.

• The Community User⁴ might appear as the last editor of a post, even a non-wiki post. This happens either 1. when an edit by an anonymous user is approved, or 2. when it randomly pokes old unanswered questions so they get some attention. In the latter case, this will only be shown in certain overviews, and not an actual revision in the revision history.

• If you are looking for an example community wiki post, see this question and this answer. They are all community wikis. You can easily identify community wikis by the text "community wiki" where the author's profile picture should be.

¹ The original author of a community wiki post can edit it regardless of their reputation. Other edits made by users with less than 100 reputation must be reviewed in the usual way before being applied.

• A much lower reputation (100 instead of 2000) is needed to freely edit a community wiki post originally made by someone else. ¹
• Voting on a community wiki post does not affect the author's reputation, and downvoting a community wiki answer will not deduct 1 reputation from the voter.
• Accepting an answer marked as community wiki does not affect its original author's reputation, and does not give +2 to the question author.
• Bounties awarded to answer marked as community wiki still give reputation to the original author.
• Edits suggested by users with less than 100 reputation will still provide +2 reputation to the editor when approved.
• The original author still gets badges based on community posts.
• The original author keeps the reputation gained (or lost) before their post entered community mode.
• The original author still receives notifications for substantial edits, suggested edits, and comments on the post.
• The user listed in the author box need not be the original author. Rather, it is the user with the highest percentage of authorship in the final revision, determined by the number of lines inserted or deleted, with a bonus (factor of 2) for the original author. Note that the name shown is calculated upon each edit and cached, so if the user later changes their display name, their previous name will still be displayed until the post is edited again.

• A much lower reputation (100 on all sites instead of 2000 on large sites or 1000 on smaller and beta sites) is needed to freely edit a community wiki post originally made by someone else. ¹
• Voting on a community wiki post does not affect the author's reputation, and downvoting a community wiki answer will not deduct 1 reputation from the voter.
• Accepting an answer marked as community wiki does not affect its original author's reputation, and does not give +2 to the question author.
• Bounties awarded to answer marked as community wiki still give reputation to the original author.
• Edits suggested by users with less than 100 reputation will still provide +2 reputation to the editor when approved.
• The original author still gets badges based on community posts.
• The original author keeps the reputation gained (or lost) before their post entered community mode.
  • If an author made their answer community wiki as part of a grace period edit, the time the answer was made community wiki will be logged as the time of the original edit, and any reputation changes from the answer in the time between the original edit and grace period edit will be removed. (This may initially appear to not be so, but it will be removed once the next reputation recalculation happens.)
• The original author still receives notifications for substantial edits, suggested edits, and comments on the post.
• The user listed in the author box need not be the original author. Rather, it is the user with the highest percentage of authorship in the final revision, determined by the number of lines inserted or deleted, with a bonus (factor of 2) for the original author. Note that the name shown is calculated upon each edit and cached, so if the user later changes their display name, their previous name will still be displayed until the post is edited again.