There's no reason to post in the fashion of a glib marketing department person if you're not. And I don't think ANYBODY finds requiring a phone number "because it's discoverable, familiar, usable" is convincing especially when considering that dissidents are apparently one of the major groups this is marketed to.
The whole thing smells funny, there's no reason to require a phone number other than Rosendfeld WANTS it.
The whole thing smells funny, there's no reason to require a phone number other than Rosendfeld WANTS it.