Crypto integration was one of the things that arguably killed Keybase for a lot of users, and damaged trust. Given that trust is the selling point for these type of services, I really hope Signal don't lose it.
Yeah, it was a disaster for Keybase IMO. My messaging tools are already valuable enough to me, the last thing I wanted was a reward on hacking it. When keybase did their Stellar drop, I didn't activate it and it was just a nagging option in the UI forever.
I don't like using SMS for 2FA because it encourages people to social engineer the phone company to port the victim's phone numbers. I wouldn't want crypto in my messaging app for a similar reason.
Right now hacking a user's Signal account means you get some txt messages. Big deal. With payments there is now real reason to try to hack Signal accounts because some percentage of them will contain money.
