I meant, make a link to an alt payment page (such as Patreon).
So use Itch for advertising, and then use another site for payments.
Since Itch are now indexing NSFW games that are free, you should use this to make a demo of your paid game and point people into the direction of your paid version. (free advertising)
Just strip out some content from your game and call it a demo 😂
Don’t link to the paid version on the demo page itself, instead do it at the end of the demo, so when a player reaches the end they will be met with “Did you enjoy the demo? - You can get the full game here {link}”.