I hope you're right about people being ready to pay. And I think you are. There's a huge un-tapped market just in the US, of people who have mostly or totally checked out of the existing platforms.
Glue looks cool. How does this compare to something like Mastodon?
I'm working on something related, called Circles [1]. It builds on Matrix for decentralization and E2E encryption. We're also in beta, hoping to launch later this month.