It's just a rule from those particular communities. You have to post something before you leave and it has to have the word rule in the title. It's just a silly thing they do.
Out of the loop
A community that helps people stay up to date with things going on.
It's specifically 196, which comes from the reddit 196. If you see it elsewhere it's just due to memeing
Thanks! But what does 'before you leave' mean?
Getting a bit more in depth, it specifically stems from the r/195 subreddit, which had only one rule stating that if you visit the subreddit page you must post before you leave. This rule was carried over to derivative subreddits like r/196 after 195 shut down. When 196 came to lemmy, this style of post carried over.
It's a meme rule
Just block the subs that do it and never waste another second of your life thinking about it.
why so? I read the news, I'm just pointing out this very typical US-centric habit
Le epic redditors i'd presume