Not attacking dev or anything but they do have both a Patreon and Subscribestar, they aren't working for free. The game also used to be purchasable on here.
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you can thank visa and mastercard for that bullshit, they equate anything nsfw/porn related to CP/CSAM because they can't get their head outta their asses and learn not everyone wants a partner and not everyone wants kids.
basically they label any/all pornographic/nsfw art as CP/CSAM, they restrict purchases of such content, and its all in a effort to get people to breed out babies for a new workforce.