>>50009725
I remember hikki threads being killed off, they were exceedingly dogshit quality-wise back then but nowadays they'd probably fit right now. Hell you can't get much worse than /djt/ or the other large thread which you can't talk bad about.
The rest i'm pretty sure was just a lack of interest or people moving on. Hell we used to have MMO and fucking world of tanks threads and those simply faded away as people got bored.

Japanese meme thread sounds kinda funny I might start that up later with mujina