This happens already today not only with Snapchat, as well as on the multitude of cam services out there. (The taboo you mention makes the problem worse, as it

This happens already today not only with Snapchat, as well as on the multitude of cam services out there. (The taboo you mention makes the problem worse, as it can quickly escalate to blackmail.) Is it likely to get worse with integrated payments? I would guess yes.