My own opinion is that Signal doesn't need to pick a single crypto, but if they'd wanted to integrate payments they should have created some kind of integration

My own opinion is that Signal doesn't need to pick a single crypto, but if they'd wanted to integrate payments they should have created some kind of integration with an existing payment platform like Bitpay. It's clear that the real intent was to make money, and it's unfortunate that they haven't been upfront about this.