So i was watching this video of Julien from Real Social Dynamics:

https://www.youtube.com/watch?v=ZyYFpYdIxrw

The like/dislike bar got my attention and i decided to check the comments section. I don't wanna spoil it for you guys, but this is a specimen:

"Funny thing is... when he says nerds... he's trying to put down guys for being nerds. Little does he know there is a HUGE female fan base for nerds ;) "

What the hell is the motivation behind this behaviour and train of thought?