In 2012 or so on lesswrong, I realized there weren't any more discussions worth having. Maybe the community declined, or maybe individuals just naturally outgrow particular fora.

I'm feeling that again now, but for everything.

One hypothesis is that the entire internet has become lame as substantive discussion has been largely banned or suppressed by fear.

That might be part of the story, but can only account for part. The bootleg stuff is also lame.

Another hypothesis is that we no longer believe that any new ideas could matter. We all post a less because the motivation chain is broken. Or maybe it's just me; I've come to the conclusion that marginal ideas aren't valuable except in specialized discourses I build myself.