A lot of stuff ONLY has viable Q&A discussion there…
As much as I love the idea of Lemmy, try finding active communities here for: MAME or any other videogame emulation… Plex… The breed of your family dog/cat… Most any sort of non-Fedi-focused brand/podcast/personality…
Yes, I can create a new community. Then I just sit in it by myself, and occasionally deal with spam.
It’s still active – save the communities that got kneecapped by mods during the revolt (and sadly, most of those are now Discord-based rather than having any appreciable activity here).
The activity there now is a lot… dumber. Like much of the internet, the ratio of real people to braindead bots on Reddit is a lot different than a few years ago.