
Update: Valve has confirmed that Steam's sudden refusal to accept PayPal in many currencies is related to the payment processor-led crackdown on NSFW games.
The removal of PayPal support for all but six currencies is "regarding content on Steam, related to what we’ve previously commented on surrounding Mastercard," Valve tells Rock, Paper, Shotgun. Earlier this month, Mastercard claimed to have no direct involvement in Steam's adult game crackdown. Valve disputed that claim, arguing that Mastercard's pressure on payment processors led to their push against certain kinds of adult content on Steam.