One of the most striking (sad) things I encountered at the recent Teardown 2025 event was how few of the people had Masto accounts. This seems like it would be a natural demo for the Fediverse: aggressively DIY, tech sophisticated, with a bit of a rebel streak.
I don't know why those folks aren't gravitating to Masto, but I do think if that was understood, we could unlock a significant barrier to adoption -- at least among the people I'd want to hang with.