Given that they just hold
BTC all these years means they have income from other forms of payments. I do not use their service, but I notice that they have PayPal and
BTC as ways to make donations, so these are probably the ways how users can pay for premium accounts.
I check their address (donation button) and it show
Total Received 216.25926871 BTC -
https://www.blockchain.com/btc/address/1Q1nhq1NbxPYAbw1BppwKbCqg58ZqMb9A8?page=1It is possible that this is just a donation address and the amount they own is actually much higher.
I believe so, most of their users must be using fiat forms of payment in order to pay for their services, which is weird, because a service providing secure emails and privacy, you would expect them to use crypto-currencies mostly, but I guess some people like the convenience.
With that said, props to them, but as a business, if they actually did hold the bitcoin they receive, that's one risky business move. Bitcoin could crash in price and the capital they're holding would be worth a lot less. But I guess if they hold long enough it's probably fine. Still though, risky af.
They probably have a target in mind - everyone does, but if they aren't desperate for income and make enough, it's fine.
It's Protonmail's own blog where they have announced that bitcoin is officially added as one of their payment methods. See the date of posting the article, it show as August 2017. Now if they are saying 2014, they are contradicting their own announcement. But yes, more such service will definitely help bitcoin to become the official currency of Internet as envisaged by Satoshi himself!
I think they've been accepting BTC donations since the very start, but have only recently added it as an actual payment method. This, or they could have just bought some BTC previously.