[uola]

Yes, phone numbers are public enough that they are shared everywhere, but unique enough to lead to a single person not to speak of that persons movements. And "just use twilio" isn't a motivation for using phone numbers in the first place.

If he had said "the benefits of finding friends are greater than the privacy implications" or something like that there would at least been a case for a discussion, but now he's seemingly saying "oh, if you really care about privacy you could/should use a fake phone number".