Interesting theory in this Spectator article
blogs.spectator.co.uk/2019/01/patreon-carl-benjamin-and-the-new-puritanism/
It starts off by questioning the role of social media sites in censorship
Since when did tech sites acquire the function of moral guardians? And when they do, aren’t they creating an even greater injustice than they are purporting to address? Isn’t this war they are conducting on free speech precisely the kind of oppressive authoritarianism that liberal Silicon Valley types ought to deplore?
but then questions who really may be pulling the strings:
...are trying to launch an alternative crowd-funding platform to Patreon, one untainted by political bias. But this may not be easy because the rot goes much deeper than Patreon. The real pressure, it seems, comes from the payment providers — Visa, Discover, PayPal, especially Mastercard — which have taken to using financial blacklisting as a way of enforcing progressive ideology.