Self-consciousness is probably a function of the amount of feedback we get from our peers. The form and format of it, especially from a person wearing a YouTube hoodie and is surrounded by a multitude of people, is, most likely, in mixed-media. There were probably people looking down on this guy as he was recording himself of the street. Not to mention the scientific discourse he was spouting. He says, "Don't feed the trolls," but the irony is that he is holding a camera to himself in public, thus exposing himself to more trolls. Maybe this is the new doublet of empirico-transcendentalism that Foucualt wrote so strongly about.
Think of it in this way: it is emperic(o/al) because you can point to your insides and say, "My stomach hurts." That is the internal, but still a conceptual side of man. The transcendental side deals more with adopting a particular fork of culture and history, while still recognizing that other forks of culture and history can as well be unified with. What I mean by this (and I as well have no credentials, philosophically, beyond an armchair) is that while empirically holding a camera to his face, in a space where it is pointable, identifiable, he also posts it on the internet where it is transcendental. This is a representation of the new man, where one is linked to technology.
Ah, that makes more sense. It's weird indeed how doing something like running a big Youtube channel messes with your identity. On the one hand, you don't want to give everything away and need to make a distinction between your personal life and your work. On the other hand, the created (or transcendental) work is so heavily influenced by that individual that it's hard to distance from oneself. I don't think this is something new, though - it seems like a struggle any artists can run into. Which part of the work is yours and how much of your identity is based on your work? The Internet is in that sense just a different, more powerful medium through which this process might occur.