I used to say “Welcome to Lemmy” to new joiners, but nowadays quite a few of them join Piefed instance, having a generic term is easier
You can’t follow Mastodon users from Lemmy or Piefed, using “Fedivers” seems too generic
Previous post on the same topic: https://lemmy.zip/post/33451610
Sure, although those terms are buzzwords only, not marketing speak. Like blogiverse, definitely not marketing.
The marketing term the Social Web Foundation wants to put forward is “Open Social Web”, but that encompasses more than the threaded softwares (includes Mastodon, Peertube, etc.)