This isn’t “one or the other” IMO. There’s room for niche instances hyper-focused on a generalized topic like “math,” “comp sci,” “sports,” etc.
But then there should also be a massive generalized instance (hopefully 2 at least so the competition keeps admins in check) that has a little bit of everything and acts as a Reddit replacement. We can have our cake and eat it too.
Honestly this community seems to generate even more useful content than r/piracy did for me. Already I’ve learned about 5 great replacements for rargbto, the beauties of torrent aggregator desktop clients, and awesome debrid streaming for iOS via WebDAV. Great stuff