the Fediverse and ActivityPub thrives eventually..
Mastodon will be an afterthought...
Mastodon helped grease the wheels for ActivityPub adoption, but (honestly) isn't remotely close to the best version of social media in regards to the way it should work in the entire Fediverse...
Especially in regards to the way it works with non-Mastodon actors in accordance with the ActivityPub standard