IMO, requiring a mobile number is grounds for disqualification, because it strongly identifies a person, and can be abused quite badly. Telegram demands a mobil

IMO, requiring a mobile number is grounds for disqualification, because it strongly identifies a person, and can be abused quite badly. Telegram demands a mobile number, even though it does not need to place calls. Check out Wire for an alternative. http://wire.com/ http://wire.com/