Yeah you're probably right. It's also not very healthy to have a barrier like this around a community. You wouldn't want just the tech savvy users on your site -- there's lots of interesting people who don't know or care too much about computers.
Still, I'm happy Mastodon hasn't yet been overrun by the masses like Twitter. shudders
I agree. Also, moderation by non-anonymous users. The best places on the internet have mods that are users themselves. That way, users aren't just encouraged to follow rules, but generally act like they want to be there.