According to the update, Itch.io is going to require NSFW creators to confirm that their content is not in violation of the payment processor they use for their account.
So when are they going to accept payment processors that actually allow erotica? Currently, the only payment processor options I see are Payoneer and PayPal, neither of which are friendly to the artistic freedom of erotica creators. Cursory research would suggest CCBill or Epoch might provide payment processing for nsfw creators.
As I have observed previously, erotica creators and audiences are an immensely valuable portion of Itch.io's userbase. The site needs to treat them like it. If the site is going to require creators bend to the polices of payment processors, then the site needs to implement payment processing that works for those creators. Failure to do so is not just disrespectful, it's going to drive people away from the site and massively harm Itch's revenue.