@scott\_bot the biggest problem with a phone number as the central identifier is... Well, it's your phone number. I get enough spam and robo-calls now, I don't want to make it even more public and link it even more to me. Not to mention the dangers of harrasment and such. I see the reasoning, and pretty mcuh everyone has one, but I don't think in the end using phone numbers as any kind of public identifier is a good way to go.