I mean, you could charge like $8 and then give the totally real people that are paying that money a blue checkmark? /s
Seriously though, I like the idea, but the verification has got to be easy to do and consistently successful when you do it.
I run my own matrix server, and the most difficult/annoying part of it is the web of trust and verification of users/sessions/devices. It’s a small private server with just a few people, so I just handle all the verification myself. If my wife had to deal with it it would be a non starter.