Hey, I appreciate the suggestion; that's something I planned to ask Itch.io about after the release of the new update.
Current problem, for anyone curious, is that after the payment processors went crazy with censorship, Itch automatically delisted all paid NSFW games, including the pay-if-you-want option, if I'm not mistaken.
If I'm allowed to include optional payment, I will gladly do it, but if the answer is that I risk a soft shadowban, I will prioritize visibility over potential money gain.