I agree with
dartred. In that line of reasoning: murder, illicit drug use, adultery, and grand theft auto often occur in all forms of entertainment media one can possibly consume. Illegal activities of all sorts are often compelling subject matter, and they are allowed to be sold and consumed in fiction. If one doesn't like those subjects, they don't buy those products, it's really that simple.
And it's not like WWG games and PV are mainstream production studios/games involved in high profile advertising campaigns. It's all make believe and part of a relatively obscure niche interest/market. Technically it is not even a matter of free speech either. One (WWG) is free to create such games/stories (in America at least), but when it comes to economic support that is a different subject. Ultimately, regardless of subject matter, these platforms (PayPal/Patreon) are companies that are free to do business with, and not do business with, whoever they wish, regardless of the content.
I wouldn't be surprised if someone was irked by WWG's success and reported the content just to illicit the "eye of censorship" from Patreon out of some jealousy or other ill-will. Hopefully it's just a paranoid thought, and ultimately it cannot be proven or disproven. Just speculation, but there are other Patreon supported games that include far more taboo, or more obviously taboo content than PV. As long as no one complains, those devs tend to do business unmolested. But once you get that eye on you then good luck.