The article claims that funds were held after being donated. That certainly goes way beyond "not choosing to do business". The claims were refuted by BuyMeACoffee, which changes things.
But if I, as a donator, donate money to someone using your service, and you then don't give that money to its intended recipient, you've effectively defrauded me. Had you said in advance "I can't do that, because you're trying to give me money to $foo which I don't support", then that is your right as a business.
But if I, as a donator, donate money to someone using your service, and you then don't give that money to its intended recipient, you've effectively defrauded me. Had you said in advance "I can't do that, because you're trying to give me money to $foo which I don't support", then that is your right as a business.