Earlier quoted context omitted.
Yes, I do this. I really wish they and everyone else would stop using phone number as an ID and use an alphanumeric ID. Really, I don't want to give out a phone number to everyone.
Exactly. How hard can it be? It would make it way more secure for almost no effort. I would use Signal if it did not require a phone number or an e-mail address (whichever it requires).
Phone numbers, for most people, only work within a certain part of the world and aren't easily accessible worldwide.