Yeah, I've seen this far too often lately. Threads pruned by half the posts, pushed off board, or deleted outright.
Filename thread in particular are prone to sudden disappearance.
That one time M:tG general got moved to /pol/ attracting all sorts of undue attention from them was also stellar move.>>61389995
Nazimod was a single person running short-live tyranny, mootkins quickly realized he put wrong man in charge. These days it's the whole staff and hiro likes to have it this way.