@Pedalville This, all the way.
People actually hear you on here. Twitter/Facebook are pretty insular unless you're popular—you mostly talk to your friends. Sure, you can reply in comment threads, but nobody's gonna find your stuff.
Mastodon opens up its whole world to you. You get updates from ppl you'd never have found otherwise—and they can find you.
I've seen people talk about how social media feels like screaming into a void. Mastodon doesn't, and that's a heady experience.