Insn`t an Email-address also an "Identity" ?
All my users are entering their "E-mail address" into the "About You"-field.
Of course all of us want our members to go through the "Personal Conversations" channel, and we do not want to have users to show their e-mail-addresses publicly.
However, why do we want users being able to show their "Identities" like Skype, but not show their "E-mail-address"?
I do know I could create such a field on my own, but I am just wondering what is the thought behind this design ?