Since I consider this important, I'll mention it in this thread too: adding thumbnails to the wiki entries can be useful. The site itself is largely visual, and -- although I don't know the actual numbers -- a large portion of the traffic is from non-English countries. Including the thumbnails makes the usage of the tag relatively easy to understand, even to the users who aren't fluent in English.

I've also been thinking of the guidelines for those. Since wiki is shared on both e621 and e926, I believe that it'd be best to use safe-rated examples. That's not always possible, of course, depending on the subject.

Blacklists are an another thing that might be worth consideration: hardcore, commonly blacklisted kinks such as vore and gore should be avoided. And since some users blacklist genders, it's good to have some gender variety.

^{_{Also, as a personal preference, I try to pick images that are of the same height. It just makes the page seem tidier.}}