I'm not really following Patreon, but apparently not long ago per request of Mastercard or some other lame excuse they banned some right-wing bloggers. While not my cup of tea, for me it's unacceptable. Not hard to imagine porn being banned per request of paypal (they did something like that few years ago) or by some self-proclaimed morality guard hidden within the ranks of Patreon staff. I agree that it was an absolutely brilliant platform for adult content creators, especially if they turned into it in right moment. Right now, I think it's really too late to start building a "brand" there. I may be mistaken and we'll probably check it more closely after game launch, but for the moment it's definitely not on our list of priorities.
As for Kiskstarter while I 100% agree with all you wrote about being recognizable brand and thus more trustworthy, thanks to people who exploited that sentiment I personally detest it and stay away from all platforms of the kind. I backed lot of projects, all were in best case scenario delayed by few years, some still didn't fulfilled, many turned out to be complete turds (OUYA, ouya, ouya...). That platform as well as crowd-funding in general is totally dead for me and “so 2010”
I have as much idea about managing taxes as I have about programming, thankfully bookkeeping and all the legal stuff related to them costs me in my country approx 30USD/month so it's perfectly manageable
Anyway, we drifted in an off topic I suggest we end here. For adult content creators it's not really Patreon or nothing else any more. Nutaku is an constantly growing beast, renderotica is widely recognized among people "looking for that kind of entertainment". Not to mention multiple other stores dedicated to adult-gaming (DLsite.com, itch.io to name just the bigger ones) - clear rules for both content creators and customers (refunds, tech support, compliance reviews and so on) so one way or another I think we'll be OK.