"The [#Mastodon] community is vibrant and filled with subject matter experts--including professors, scientists, video game developers, and musicians."
(He forgot #bunnies . Perhaps he considered it obvious when he mentioned "experts".)
Quoted from an article in Barron's:
https://www.barrons.com/articles/guide-to-mastodon-twitter-alternative-51669848601?refsec=technology&mod=topics_technology