Back in April Pornhub announced that it was going to start letting users pay for premium subscriptions using cryptocurrency, specifically the ...
source https://www.google.com/url?rct=j&sa=t&url=http://www.gizmodo.co.uk/2018/09/pornhub-says-less-than-1-of-subscribers-pay-with-cryptocurrency/&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNEmEJkxpzpDhBXog7JwW9l2JckdAQ