Ok, firstly there are 1000s of PMs a day so staff won't check it all IF they even looked at them at all.
Which brings me to my next point. They don't check chat logs unless they have a decent reason to (ie: accusations of hacking, etc)
But Az is right. Don't give our personal details just in case. Though you can sleep soundly tonight without worrying about snk breaking into your house and stealing your computer.