Take a picture of your ID and using photoshop change a few things: name, birthday, address, etc. Is very easy to do.
I know escort who got their ID "verified" by RM using the same method, one can't even remember what age he gave them.... and he's not savy when it come to IT. Any idiot can do it.
They only care that your payment goes through but I understand the concerns about privacy and whether they'll sell your information, be hacked, etc.