[xboxnolifes]

CSGO used to require a phone number. It changed a bit to be "optional", but all that really means now is that they made the system more opaque.

It used to be that to get prime queue (or whatever it was called) you need to phone number, since the open queue was filled with hackers. The new systems still attempts to do the same, just without the hard boundary. You may end up in the hacker lobby, or you may not. You won't know.