You can bypass the de facto ban that VISA and Mastercard put on the existence of some websites, for example Gab or the other similar one which now I can't remember. If I recall correctly, you can currently donate money to those sites only using cryptocurrency. This is kinda important, in my opinion, because "only offensive speech is free speech" (this doesn't mean I like those sites, but I don't want the credit card companies to decide what can exist on the Internet)