1. A know-it-all
Nobody likes a person who's too strict about the rules and constantly bother someone about it, then ends up threatening someone about what they post.
If you end up blocking them, they'll just create another account just to bother you some more. And this will continue on unless you report them for harassment.
The only person that should tell you about the rules is the DA staff itself.
2. Someone going overboard about Critiques.
People will often give you a long critique that not only insults your art, but also makes you feel bad about yourself because the person hates his/her life. Block this type of person, especially if