Posting large numbers of failed [thing] is adding to thr large number of [thing] being shared. Basic engagement that perpetuates more and more [thing] filling feeds.
Like how a feed complaining about celebrity gossip spam is just perpetuating celebrity gossip spam.
It sounds like there's a community making fun of bad AI images.
If I had to guess it's fuckai, I blocked it a long time ago tho, but they've got like 50 mods and when I got to block someone I keep seeing they mod there.
If you also did the common sense thing and blocked the community a long time ago, you wouldn't see it.
There's also a chance you dont federate with the same instances as OP.
I don't know why, but lots of people tend to think everyone sees the same stuff on Lemmy, there's a lot of variation
There's a community in which people post examples of an AI image generator messing things up. I think that's what they mean by "ai-images failing". I think they're saying: "you may think that by posting to such a community you are being critical of AI generators, but in fact you're still filling your head with AI noise."