I understand the problem with people cheating the first post review audits by simply clicking the add comment button, but there really has to be a more graceful way to handle it.
It should be as simple as forcing the person to actually write the comment and submit it which will make it less abusable, and if they are abusing the system, they'll be caught quickquickly because they'll actually be posting their (presumably canned) comments on real questions.
andAnd if the comments actually aren't canned and relevant to the question anyway, thanthen it's really not that harmful that people are doing it.
Both edit and add comment are neutral actions, and it doesn't make sense for someone to fail an audit regardless of whether the post is good or bad (unless it's a blatant spam post or something).