The likely answer is that a mine field of reasons is being created to appease payment processors. The payment processors are either wanting to censor or are having pressure put on them to censor.
There are two extremes which are at war right not freedom and security. The more secure something is the more it is tracked and monitored. Things that those in power do not want happening or traded will be targeted and removed in the name of security. The more freedom one has the more horrible things can occur without being traced.
The world in general is heading to a multitude of surveillance states where everything is tracked and monitored. Either from the governments trying to "protect" their citizens or from companies harvesting data to maximize their market advantage and remain monopolies/oligopolies. Regardless of which group wins the surveillance war and becomes the leading power of the world they have their views and agendas.