Eh, I am pretty sure that, outside of personal stuff like his mourning tweet for Incineroar's voice actor's passing, Sakurai's Twitter accoutn must be manager by another person, so I doubt he has to personally deal with all this. I do feel sorry for whoever manages his account, though.

Harada was subject to his version of this situation. When Tekken 7 launched, fans constantly begged for Lei Wulong, a character absent from the game, to be put into the game. When he did so, he was not greeted with praise and thanks, but with more complaining. He knows what it was like to deal with that crowd and in the end, he proclaimed for people to never ask him for anything ever again.

While I think his reaction is over the top, he has a personal vendetta against these kinds of people, plus he's well-known for telling people to fuck off with their bullshit.