Today, on Twitter, he said the folks at PayPal are in fact “believers” in bitcoin and that the company supports the sale of bitcoin mining rigs, the machines that help drive the worldwide open source software system that is bitcoin. It’s yet another sign that the influence of bitcoin is expanding — and that existing tech outfits like PayPal have no choice but to respond.

As it turns out, Marcus was responding to a bit of a firestorm that spread across the internet discussion forum Reddit over the weekend.