Yeah, no, that wasn't the reason at all. The reason was he thought he could milk a game FOREVER (just look at the content stream, people released twice the content he did and they earned only a mere FRACTION of what he earned) and he thought he would never recover financially from BB being shut down. So, afraid to lose his golden eggs chicken, he immediately started dev work on Glamour as it wouldn't be banned from Patreon for having incest content. Then, in order to not lose his thousands of potential Glamour patreons who (rightfully so) went apeshit when he said he wasn't going to finish BB, he put together a pitiful excuse for a "finish" to BB's story, and forgot the game ever existed.
Never was it about being "pissed off" about pirating. Dude earned 30k+ a month, and I can guarantee you, most of those patreons came from sites like f95zone or fapnation. Without "piracy", he would never have even a third of the patreons he had.
In a parallel story, DmD dev, despite having his account suspended from Patreon, STILL kept the game going, while developing a new game entirely, and neither game had to suffer. All that whilst earning way less money than DarkSilver ever did.
In conclusion, DS was/is/will always be a greedy asshole who only cares about the money. I really regret being his patreon, wish I could have given that money to the devs of STS, DMD or even MotH.