He doesn't give into the constant pressure of trolls telling him he sucks (wel, not aways). He ignores the fact he is ugly as fuck, and will even taunt the trolls saying he has 'fangirls'. He ignores the fact he is infamous and a lolcow. In his mind, he is an awesome singer and guitar shredder (like elvis and johnny cash,, and even Back Street Boys). He's content getting free money because it's a business exchange, not begging as the trolls say. His food hacks are awesome, there is no such thing as a 'girly drink', and Jessica is a hot goth girl --not a mentally ill old woman that's bottom of the barrel Wendy's Pussy.
It pisses the 14 year old trolls and redditors off that he won't acknowledge reality. They constantly fuck with him, sometimes getting a reaction, and more often they just reinforce his delusion.
I think deep in that Boglim brain, Josh knows how shitty his entire life is. They want him to break and acknowledge it -- but he doesn't and it pisses the trolls off.
Cobra always wins