Just stop caring about people who don't like you, don't have similar hobbies, make a big deal about your avatar/other people's avatars, or don't want to be your friend and just talk to people who don't care and want to be your friend instead.

This is what I mean when I say /vrg/ and 4chan is not a monolith. Not everyone is going to get along and agree on what is acceptable and what isn't.