[nemomarx]

The fraud thing explains why they might avoid an entirely adult storefront for it, but for steam? who has their own refund policies and support system that presumably shields the payment processor from charge backs most of the time?

There are also large anti porn lobbying groups applying pressure to the payment processors, so that angle creates costs in a different way.

[bitmasher9]

Steam’s refund policy and support system doesn’t eliminate the possibility of someone buying on steam with their CC and then calling their CC and claiming fraud.