Did you have any problems registering for, or withdrawing from gate.io? Do they want ID to register?
Y'all know gate.io is a rebrand of bter.com don't you? They were 'hacked' for 7000 BTC and then gradually lost interest in attempting to repay their customers/victims.
I know gate.io = bter.com, but bter.com started demanding IDs to trade there in its closing days. They said it was because of new China gov rules. If gate.io doesn't want IDs it (or its owners) must be based in a different country.