What happened is very sad and unfortunate for all game market, still I guess CS is just a convenient patsy as why big financial players like visa & mastercard would even consider a bunch of Aussie weirdos ?
Maybe the only way to push for a change is the old way : BOYCOTT !
It would needs all authors here on itch.io either stop allowing payment of their creations or offer them for free here and incentivize a lot for direct contribution without going through any involved party in this censorship.
Without their regular cashflow, itch.io will have to do something or go broke, this is where WE HAVE THE POWER over them.
We can fight and we can win, we just need NUMBER.