It’s considered a very lgbtq+ friendly community, and it announced closing entirely in the wake of the Reddit blackout, so a lot of its members have come here to Lemmy.
It's the posters stating that they're posting to obey the rule of those communities. Something along the lines of having to post an image from your device if you end up browsing there.
I thought it was also in reference to a previous subreddit that I think was named 195, that had no rules but ended up being bigoted and such. So when 196 was made, a much more progressive/leftwing version, all they technically post are rules (hence the post titles) to further clown on that previous sub