It's not going to stop at Steam and Itch.
It's an attempt to censor the internet by Collective Shout, a group of "Christian" TERFs led by Melinda Tankard Reist, based in Victoria, Australia.

I mostly find myself agreeing with this post on Lemmy:
https://lemmy.world/post/33429759

Let's all make sure to help our NSFW artists weather this renewed attack from pearl clutchers, especially when they rely on their NSFW works for basic income.

why should we? We didn't stand in solidarity when cub artists were banned. Like it or not we threw a part of our community under the bus to save ourselves and only now that something we value is threatened do we want to actually stand together. We gave the censors a green light when we refused to stand with them and now... well what will be thrown under the bus next to save ourselves this time? Pregnancy? Scat? Transformation? Transgenders?

I think we need to invite all the artists back in or we're just a bunch of hypocrites who have no ground to stand on as we cull our allies in a vain attempt to not be next on the chopping block

That was a choice by FA that I didn't agree with, but other places like Inkbunny are still around, and itch.io does allow ABDL. The thing is it's the payment processors that we're fighting, and they're everywhere. If we don't stop them, there'll be noplace to turn to.

On Patreon the credit card companies have already pressed out ABDL, Transformation and Mind Control. On Fansly, furries are banned for "Beastiality". They'll come for all of us if we don't do something.