Just in case, Ko-Fi is exclusively SFW too, but at least their policies have always been the same.
Many artists and writers are going to Subscribestar.Adult or going to less known websites that accept cryptocurrency like USDT to avoid the stalking of the credit card companies / banks / virtual wallets like Stripe or Paypal.
Like, last week there has been new changes in policies and three platforms where most NSFW artists and writers have been affected. One being Patreon with their new "consent policy", Gumroad banning "suggestive" content and then PixivFANBOX has began to prohibit more content due to the pressure of MasterCard. Even non graphic artist platforms like OnlyFans have started to be affected... so yeah there has been a lot of Tumblrification.