>neither had much competition when it launched though
I'm sceptikal as well, about a federated protocol being able to replace an existing entrenched player. Buy I still hope.
>Not to mention the majority of people get their email hosted by a proprietary service these days.
But all the proprietary services talk to eachother, and, mostly, talk to private instances as well. There are absolutely allowed to be proprietary PeerTube instances.