I get the sentiment you are sharing and I am not advocating execution of Blind anyway, but it you want to make anonymous "rooms" like say peole from Google belo

I get the sentiment you are sharing and I am not advocating execution of Blind anyway, but it you want to make anonymous "rooms" like say peole from Google belong to one room and Facebook to another. How'd you make that without first establishing that someone is from Google. I understand taking their work email is asking for more info than desired. Probably they can use something zero-knowledge (I am not well aware of the concept) where someone proves their employer's identity without their own.