https://www.creditcards.com/credit-card-news/card-payment-gu...
https://www.nytimes.com/2018/02/19/business/banks-gun-sales....
https://nypost.com/2018/06/11/gun-businesses-scrambling-afte...
https://www.marketwatch.com/story/could-credit-card-companie...
I'm not sure, but I can offer two hypothesizes that aren't mutually exclusive.
1) Gun owners have been marginalized on social media and their hellfire is going unnoticed on alternative platforms, or simply isn't promoted by algorithmic timelines.
2) Gun owners are already predisposed to purchasing guns with cash, for privacy reasons, so many don't feel particularly inconvenienced by this development.
But that is exactly what is happening. Visa is saying to Patreon - don't let people give money to XYZ persons via your platform.
Hellfire would rain down on any Network (Visa, MC, Amex, Discover) who thought about refusing to process firearm purchases. The NRA, any republican, and liberals like myself who support fundamental rights would be rightly pissed that a hard-to-avoid service such as the Visa network was making a decision on what I can or cannot do with my money. Because the minute you start making those decisions, it's a slippery sloap.
Their business prints them money, so why would they want to kick the hornets net? This is why I'm extremely weary of anyone who declares that Cash is Dead, or the future is Credit/Debit cards