As much as a strong punch would hurt him, compare his speaking voice before and after this classic:
Because to me it sounds like losing a few chompers helped him. He doesn't sound like he has shit in his mouth as much, and maybe it was already too crowded.
If you step back and watch this video analytically, it really gives you a look at how his mind works, just how bad his Napoleon complex is, and how fragile his ego can be.
If I'm not mistaken this is the night the shit licking stylus video was released, right?
He got his pants pulled down and was humiliated by the trolls once again, only this time it was different. His stock reaction to anything that upsets him is to lash out, the more he's upset the more he lashes out. Normally it's just him yelling and screaming, the level beyond that is him hitting the desk or breaking something, and the next level is when he gets physically violent with someone.
That (self inflicted) humiliation did so much damage to his psyche, he did the only thing he could think of to try and reassert dominance and get his balls back, which was to attack Sally. But all he got for his trouble was a mouth full of blood compliments of Ed's first.
So now he's stuck, he can either go back to his room and rage at the people he's mad at, or he can try hitting Sally again which he knows will probably just wind up with him in the hospital. So he went with option A because at least the internet can't reach out and bitch slap him. His ego wouldn't let him just take the L and slink off to a dark corner to lick his wounds, no he had to do something to show that he was still in control.
In his mind, he thinks this is showing the world that he's dangerous so it'd be wise not to fuck with him, he thinks screaming will intimidate his trolls into backing off. He tried acting out in the real world and got punched, so he's had to slink back to the safe space of the goblin cave, the only place on earth where he can still think of himself as the millionaire in waiting future rockstar and race car driver who could beat up the entire UFC roster on his own.
As has been pointed out by others, he has this compulsion to always be seen as the superior in every situation, he can't handle any sort of defeat or negative feedback. Outside is the cold harsh reality that he's a fucking zero and always will be, but in the goblin cave he can continue to live in his delusions, basking in the praise for all of his non accomplishments and soaking in fan admiration. Until the next time the trolls get him to humiliate himself and expose all of his insecurities.
Notice that only when he's making a play for sympathy does he ever admit that he's not the big swinging dick he fronts as. Then it's all "When I was born I was the size of a coke can, with only 1 lung and kidney. I'm small and grew up poor, my dad went to prison, my mom died when I was young, my brother died of AIDS. I just want to support my family with my music and to be left alone, I don't deserve any of this".