The thing is, it wouldn't have to cost a lot. Signal spends $50M a year for about 100 million active users. That's 50 cents per user per year. Or 4 cents per m

The thing is, it wouldn't have to cost a lot. Signal spends $50M a year for about 100 million active users. That's 50 cents per user per year. Or 4 cents per month :) Even with a bit of profit it's still nonsense money. And 6 million of that alone is going up in sms validation because they insist on using mobile numbers as an identifier. They could save that if they used other methods.