its a vaguely progressive/leftist former shitposting subreddit with a very large lgbtq+ and ally prescence. the only rule is that you have to post before leaving browsing it. a sort of unofficial rule is that every post must have ‘rule’ in it. As for the name, no clue.
just looked it up, apparently the community used to be r/195 but it got shut down and then it became r/196. i could find signifigantly less about why r/195 had its same, all i found was this one post saying it was someone’s apartment number, so essentially its basically random.