Bluesky I use a fair amount, nothing else comes close to that and lemmy though. I guess if you count just watching but never liking or commenting on videos, YouTube.

I like to do drive by gawkings of Nextdoor. I live in southern CA so people get absolutely, hilariously deranged about some things. Coyotes and bike lanes are probably going to cause the downfall of civilization, based on the fuss about them.