His grand vision remains to leave Mastodon users in control of the social network, making their own decisions about what content is allowed or what appears in their timelines.
I don’t use Mastadon cause I don’t care for micro-blogging, but nevertheless, I like this.
And HTTP/2 can be used to provide video steaming, but that doesn’t mean that nginx will be the next YouTube. This isn’t a question of technical feasibility, but project focus. Though, I must admit, I don’t follow the development of fediverse software all that closely, so maybe it is on the roadmap.