I mean a few nsfw game dev peeps, me included, who got de-listed have just been turning their payments option to "No payments", for some odd reason it indexes them so peeps can see and play them but obviously there's no way to get paid this way but at least your stuff can be seen. I tried it and it works, but as soon as i switch to "$0 or Donate", it immediately gets de-indexed, so not really sure what's going on, @.@
Viewing post in NSFW Deindexing/Bans
It's because the owner of this site made an announcement the week of the great eroge slaughter that if you put no payments, you will be indexed again, and that all paid NSFW content will be auto deindexed.
https://itch.io/t/5149036/reindexing-adult-nsfw-content
However I and many others have done that and we are still de-indexed which I guess means we're still on Itch's shit list. But they won't tell us what we're doing wrong.