That's a common issue with Patreon games.
It does make a lot of sense business-wise, if your game is decently popular it's safer to milk it for as long as possible than get a quick burst of cash from releasing a finished product. Not all folks that support the current game's development will stay to support the next one's.
That's why so many games like this are perpetually work-in-progress. That being said, it is quite different than Star Citizen in that if they wanted, they could likely finish stuff up eventually, Star Citizen is most likely never going to be what was promised. And nobody expects cutting edge technology from most porn games, but SC actually sold itself partially on how incredible it sounded at time of announcement.
I mean, Patreon exists to
take a cut from facilitate anyone who feels like being a patron of the arts. Kind of a brilliant business model, so long as people keep paying. This is regardless of whether a "final product" is produced, since art isn't really a product in the traditional sense. Kickstarter exists to fund stuff that not only is expected to be produced (designed, business plan and all), but is contractually obligated to produce it (or get sued and go bankrupt, I guess) and deliver something (ideally what was promised). Star Citizen is just by far the worst example of something that was Kickstarted that prolly shouldn't have ever been accepted, and thus everyone has been dealing with the legal ramifications of it ever since... but it ain't art, it's a product.
Moral of the story is that Patreon is basically a fully legal scam if you're expecting any sort of professional productive timeline off of it. But if you just want to support an artist like you're a Medici on a budget, go hog wild!
