I posted about as much there as I do on Lemmy. For 10 years. It changed over time from when I first joined until I left with the appocolypse, but I’ve seen many forums, chat rooms and social media things do the same. It’s mostly the people that influence the content and culture, not the UI/UX the owner of the site made or changed. Generally, everything gets turned to shit once it hits enough users and the ratio of users who developed and experienced a certain culture are lower than the new users who have no frame of reference and end up shifting that culture.

This even has a name. It’s called “Eternal September.” From when college Usenet services would be flooded with new students in September that didn’t know proper etiquette and such.