Every site is different, and has their own pet peeves.

Here's a few examples:

• Physics.SE
  Most people don't like:

  • "Do my homework"-type physics questions

  • Non-mainstream physics, including pitches for personal theories. We deal with mainstream physics here.

  • Questions about fictional physics

• Space.SE
  Life threatening experiments:

  • Building a rocket engine to launch myself or some other cargo into orbit

  • Developing/storing a fuel for my rocket

  • Any other type of life-threatening amateur work in or around space exploration (i.e. sending yourself to the moon or Mars)

• Stack Overflow - Kali Linux

To help deal with these problems, along with the help files and per-site-metas posts, we have the tag-block-request, blocked-tags, and all-caps warnings that popup if you attempt to use a cautionary tag:

Other than the above, catching posts about topics that tend to attract negative attention is done manually; by people who monitor the new questions tab and user-moderate their site.

Blocking certain tags is a strong hint, the pop-up warning is another; we'll always have to rely on users to have the final say, unless we want to run into some of the problems caused by the quality-filter catching too many posts.

Every site is different, and has their own pet peeves.

Here are a few examples:

• Physics.SE
  Most people don't like:

  • "Do my homework"-type physics questions

  • Non-mainstream physics, including pitches for personal theories. We deal with mainstream physics here.

  • Questions about fictional physics

• Space.SE
  Life-threatening experiments:

  • Building a rocket engine to launch myself or some other cargo into orbit

  • Developing/storing a fuel for my rocket

  • Any other type of life-threatening amateur work in or around space exploration (i.e., sending yourself to the moon or Mars)

• Stack Overflow - Kali Linux

To help deal with these problems, along with the help files and per-site-metas posts, we have the tag-block-request, blocked-tags, and all-caps warnings that popup if you attempt to use a cautionary tag:

Other than the above, catching posts about topics that tend to attract negative attention is done manually; by people who monitor the new questions tab and user-moderate their site.

Blocking certain tags is a strong hint, the pop-up warning is another; we'll always have to rely on users to have the final say, unless we want to run into some of the problems caused by the quality-filter catching too many posts.