IMO it’s gotten markedly worse since the 3rd party app debacle. Perhaps combined with the advent of AI added to bots has made it obvious. Yeah, it’s been on a decline for quite a bit with the repost bots repeating everything from posts to replies, but people would call them out. Now it’s like it’s bots all the way down or the remaining participants have resigned themselves to the decline.
Small subs still seem mostly safe, but anything with decent participation is pretty bad.