I feel very mixed about it. Good for people to try PeerTube and create videos but it's depending how much video channel there is, it's going to be a nightmare for moderation.
For example, other bigger Mastodon instances with open-registration despite some have good moderation team, it's much easier to have bad actors and you had to relie on people to report them. Compared to something that's closed, you have more control and better idea of if that account is going to be malicious. It's not 100% fool-proof but I find those instance with approve-registration tend to have less bad-actors compared to ones that widely open.