0. Only post socialist memes

That refers to funny image macros and means that generally videos and screenshots are not allowed. Exceptions include explicitly humorous and short videos, as well as (social media) screenshots depicting a funny situation, joke, or joke picture relating to socialist movements, theory, societal issues, or political opponents. Examples would be the classic case of humorous Tumblr or Twitter posts/threads. (and no, agitprop text does not count as a meme)