This is pretty interesting!
I think serving video is a particularly interesting use of Webtorrent. I think it would be good if you could add this as a front end to basically make sites DDOS proof. So you host like a regular site, but with a JS front end that hosts the site P2P the more traffic there is.
The "host" is the user in this case. Every user that watches the video, shares the video. Given that discovery doesn't appear to be a part of this platform, any links would undoubtedly be shared "peer-to-peer" as well, so if you aren't looking at illegal things and don't have friends sending you illegal things to watch, it's perfectly safe.
I like Peertube a lot, and I didn't realize until just now that they had a form of P2P distributed distribution which uses WebRTC. But it would be great to be able to do that with a static site, without deploying a whole framework. Just a simple JS wrapper which could sit on top of a <video> element would be amazing
I think it is very difficult (and dangerous to the host) to serve user-uploaded videos at scale, particularly from a moderation standpoint. The problem is even worse if everyone is anonymous. There is a reason YouTube has such a monopoly on personal video hosting. Maybe developments in AI moderation will make it more palatable in the future.