Chatrooms used to be for idle chit chat, banter, and quick questions, but are now being used for deeper technical discussions. Ironically, you find a lot of this on places like Reddit, including an excess of uninformed and repeat questions.
I am of the opinion that Discord does any niche community a great disservice by first locking content behind an invite link and, once invited, content is locked behind pages and pages of search results if the content is even still available.
I’m sure there is bias on my part because I cut my teeth on forums of the ‘00s to the mid ‘10s, but the siloing and fragmentation of information has ultimately divided up centers of knowledge into smaller and smaller pieces. Those in the know will know and those not will be shut out.