Guess I'll try for the basic verification BS.
edit: last 4 of social needed ffs? gah
I would not risk leaving 1 satoshi on that exchange.I certainly would not give them any of my documentation because if they get hacked you are in serious trouble with scammers and crooks having access to your data.It would be less serious to have your money stolen off the exchange than your passport details or whatever.You should NEVER send any of these exchanges your data unless their terms and conditions allow you to sue them etc if someone hacks into them and steals your data.Do they take full responsibility for your data security?