I find the usefulness of a subreddit is inversely proportional to its size (popularity). There are still some good ones but they are quite small.

I had hoped Lemmy would fill this void for me but it’s still too small overall such that the smallest communities are barely active at all. Thus I tend to just scroll the feed of everything and see what catches my eye, admittedly a much less useful way to spend my time since I get sucked into ragebait instead of discussing cool hobbies.