For anime there’s not really activity for episode or Manga chapter discussions, and found that the My Anime List forums ended up filling that void. https://myanimelist.net/forum/
For buildapc checked out pcpartpicker and found they had a forum with people to help and being pcpartpicker the layout of parts is really nice when people suggest them to you https://pcpartpicker.com/forums/forum/27-create-a-part-list-for-me/
For more casual stuff like pics and memes found squabbles has pretty good activity https://squabbles.io/
For NBA stuff found realgm forums with lot more activity for individual team boards https://forums.realgm.com/boards/
For video game deals found this forum https://www.cheapassgamer.com/forum/10-video-game-deals/
It was nice that forums are still alive once I finally tried to seek out communities outside of reddit after all these years
Yeah. Would see similar. Full on swastikas in ascii art style stuff. This was within the last couple years, around the time there was another small exodus and I went back to check on slasdot. It was about the time Ruqqus was starting up. Like I said…just homer simpson backed away and moved on and left it to RSS feed links.
Its a shame what relative anonymity brings out in people on the internet really.