Oh that's a very insightful point. The guys who I talked to who were banned only had like a sub 5% download to collection rate. I have about 25% despite having several updates so maybe that's keeping the ban hammer off of me. It makes sense that they could use that as a metric. That's the only thing that's different about me than them I can tell.
I personally had no problem getting indexed at the start, and every single post from me is eroge. All of mine suddenly got deindexed and downloads blocked a few weeks before the payment processor thing, then they unblocked downloads a few weeks later but kept the deindexed, and I was just not sure if I'm going to be nuked soon or what they kept me deindexed meant. Most people I talked to got banned out of nowhere, and they didn't have any TOS breaking content, which confuses me.
It seems that Itch has no plans to totally ban NSFW stuff at this rate, so I'm just trying to figure out the secret sauce to keep myself from getting kicked. I don't have a big following, and nearly all of my followers came through other followers reposting my games on other sites, so it isn't the end of the world if I get banned, but it's fun playing around with the game page appearance and I'd like to keep that as long as possible.