How have you personally found the Lemmy community compared to its competition and other social media?

I've been on the Internet specifically for the social aspects of it since 1990 and I honestly don't see much difference at all between any specific site, forum, Usenet bulletin board, chat room, or service. Just the in-jokes are different and some terminology changes. People are people no matter where they are. The internet as a whole fosters a particular subset of people that even amongst their own different tribes, are fundamentally the same. A lot of outcasts and marginalized people that have no others of their particular group in reality to vibe with. I'm one of them, and I love the web because there are so many others like me here, everywhere I happen to go on it.