His most fervent supporters pretend that Evans has no obligation to his patrons, because what happened isn't their business and he is free to spend his earnings as he pleases. That may work fine for someone who is expressing an opinion about him, but not for someone whose opinion is backed by financial support. Look, it's not difficult to figure out:
Patron: I am not comfortable knowing that my money might be supporting prostitution, or that the person I send money to is ruining his marriage and being a bad role model.
Evans: My personal life isn't your business, and I am free to spend my earnings as I please.
Patron: *cancel subscription*
Does this make it clearer? Do you understand now why it is their business? And why he can't just dismiss their concerns? And why this forum thread drives him crazy?