Toooootally worth it. /s
I hope that people have learned a simple fact: megacommunities can't be effectively moderated, a place like HN probably represents the upper end of how many active users a site can tolerate and still be worth visiting. A place like Reddit is more or less just an open sewer by comparison, and it's hard to imagine a way to change that at scale.
Small communities share aims and tastes, individuals can stand out and be dealt with if needed, and an affordable amount of human moderation can handle spam and bad actors. Twitter, FB, Reddit and all of those giants are too big to work, and that's why they're full of such miserable people shouting at each other.
Probably. Even that is too distracting for me. I prefer email.