It is a strange move for a company that takes user data and privacy so seriously to require last name in their user model. I've been using Telegram sometimes wi

It is a strange move for a company that takes user data and privacy so seriously to require last name in their user model. I've been using Telegram sometimes with friends and also found it weird how incredibly difficult it is to find where to enter a username in the app to add someone, instead of their phone number. I thought it was supposed to be a super secure messenger, shouldn't secure go hand-in-hand with anonymity? It doesn't have to, but it can be.