I think my favorite part about Mastodon is how many people are on servers other than mastodon.social, you can’t say that for a lot of other federated services like this (Matrix)
@jonah This mostly has to do with matrix.org being the default option on Matrix where you're not presented with a list of servers, compared to Mastodon's pick-and-choose, open buffet approach.
That said, there is a significant advantage to Matrix's approach, since one of the biggest barriers to entry is picking a server. If Mastodon made mastodon.social the default server, it would've made sign up a lot easier and people would eventually slowly disperse across the fediverse.

