There's a phenomenon on /tg/ of really disruptive and unhealthy posting styles. The first is the thing mentioned above about made-up schizoposters; almost every thread that isn't a general is accused of being made up by "that guy" or "bumpfag", and some very dedicated anons will lurk the thread and bring it up in response to every on-topic comment and jerk each other off about how they're protecting the board from trolls.
The second is calling people a "nogames" and accusing them more broadly of not actually playing tabletop games. It is true that a lot of people who can't get friends together to play RPGs still read the rulebooks and material, and it's also true that they have different opinions on how things work than people that actually play. But it's a completely unfalsifiable argument-ending accusation, designed to shut down conversations by diverting them into bickering rather than furthering discussion. You'll get called a nogames for suggesting a system other than D&D 5e and Pathfinder, or for talking about a blog post you've read, or for expressing any opinion really.
Both of these problems imo grow out of regular users trying to self-janny the board, rather than letting the mods decide what is and isn't allowed. I don't know where it comes from; I suspect it's zoomers that are more used to discord, and treat every internet space like a self-regulating pseudonymous room. The fact that 4chan is anonymous doesn't stop them from acting like they know people by their posting styles, because they just can't understand that imageboards work differently from pseudonymous social spaces like Twitter and Discord; that's where the theories about schizoposters and trolls come in. I also think that general threads attract this kind of behavior, because generals involve a lot of social behavior where the same people show up for years on end and get to know each other. People who ONLY socialize online, because people irl can't stand them, start to frequent boards when generals get going, and this tanks the quality because these posters will be hostile and annoying no matter what they're posting about. The boards that ban or severely restrict generals have done better quality-wise, because there's nothing social for these people to latch onto.
The problem has gotten bad enough on /tg/ that there are weekly threads about why the board is dying, why the user count is diminishing, how hostile everyone is, etc etc. Most of the catalog is taken up by month-old generals with hundreds of posts, and all these generals are tightly regulated by users who will bitch at you for e.g. posting about a nu-OSR game in the OSR general. It's no wonder the place is dying.
