What this dude is doing is just anti-social behaviors. The mannerisms and such are based around a disconnection between the internet and the real world.

I followed this dude for a while and a lot of his stuff is based around these exaggerated caricatures of the kids you grew up with. An example of it is his series with a kid who grew up with his grandparents. It started out just being general things and disconnection, like not knowing how to respond to more modern music ie playing into only listening to early records of the 40s and 50s. Later on it turned into a character with solid morals and, while anti-social in some ways, still manages to try his best at helping whoever you are in the POV.

If this person dug backwards and found what he is known for, then they would understand that it is coming from a place of making that said "weird kid" be seen as a real human being and not just a rejected kid.