Sadly the imperative is, as often, a call to everyone to be good guy and make less noise. Unfortunately, it doesn't work, neither at personal level, nor at global.

One may be quiet, but what if your friend/acquaintance/fellow got possessed by some AI slot machine, and is sharing his "products" enthusiastically? I had such case, and right from the very beginning was dismissive and rude, and it doesn't work -- he keeps sharing various artifacts.

On a global level, yes communities die out. I think, global communication has reached the point when it's more a liability than a benefit. In late '90s and early '00s, maybe until early '10s, getting more connected could lead you to nice clients, getting hired etc. Nowadays, even before ChatGPT 3 in '22, every such area became overcrowded, underbidded, etc, and LLMs, surprisingly, added not much new -- just augmented this trend.