How does the Wiki for this site work, like what is it for?

Everything.

Helpful information (like blacklist) or avoid_posting...

and information about tags

Ideally, EVERY SINGLE TAG should at least have a few words written about it. This is the information you get when you click on the ? next to a tag name on a picture. the idea is that the wiki info for the tag gives you an idea of what the tag is supposed to be about. daww was one recently written.

Sometimes they give helpful ''related' tags, like double_anal does.. .and other times they go into great detail, like tail_button_bottoms, or include strict ideas about what does or doesn't go under a given tag, like gay.

does this answer your question, or did I miss the target?

SnowWolf said:
Everything.

Helpful information (like blacklist) or avoid_posting...

and information about tags

Ideally, EVERY SINGLE TAG should at least have a few words written about it. This is the information you get when you click on the ? next to a tag name on a picture. the idea is that the wiki info for the tag gives you an idea of what the tag is supposed to be about. daww was one recently written.

Sometimes they give helpful ''related' tags, like double_anal does.. .and other times they go into great detail, like tail_button_bottoms, or include strict ideas about what does or doesn't go under a given tag, like gay.

does this answer your question, or did I miss the target?

yes it does

glad I could help :D