The question is probably more related to what he has done rather than what he is doing right now, and he is kind of famous for having created Linux in the past. To someone who doesn’t know anything about Linux licenses I think it would be easy to suspect that Torvalds might have some kind of ownership of his creation.
My paranoia level: Even though I’m pretty good with computers in general, I would not trust myself to set up a safe public facing service, which is the reason that I don’t have any of those on my home server. If I needed something like that I wouldn’t self host it.