Perhaps only allow users to post titles and comments that are a command and a line? Like this: ⌘–

EDIT: and have that be the only moderation restriction going forward besides things that would get the subreddit removed. The more relevant the post is to the literal words “command” and “line” and the unicode symbols I posted, the better.

EDIT: correction, I posted an endash. Something like a box drawing line would be better, i.e. ⌘─