Devs/creators come in many shapes and forms. There is those that just have creating games as a hobby on the side with patreon adding to the income. Then there is those that take it more serious, maybe create a small studio and hire on more help as income rise. Then, some in between.
I don't think any creator does set out to ripp anyone off with intention. I do believe you can go into a dry spell and burn yourself out. Particular if you got it as a hobby and a side project. I got projects in my garage that started out fine and ended up as a mental foot note in the back of my head.. "one day"... If you wan't to create adult games and use Patreon as a platform to MILK people for cash, it's a damn slow process to get going. There is many adult games on Patreon that have very little to show for in the way of support, even been on the platform for a long time. Would think kickstarter or go fund me, and platforms like that, would be a better sources for get rich quick schemes.
Everyone can be a critic, but critic stop being critic and evolve to something else at one point. Imho, if people start point fingers and make claims someone is a terrible so, and so, and they make just bad shit. Then harden up and make something better yourself, and if not, at least appreciate the effort someone is making to get your rocks off (eventually). Patreon is about support the creators on the platform, it's never about buy a product or a service. If people unhappy with the creator they stop the support. At least that is what I do if I don't feel progress is being made. Stop treat creators of adult games as skanky twitch thot's