I'd trust most people with a minor secret like omg I once fucked a fat chick, but I decided long ago on a policy of simply not exposing any personal info online, like full name, address, where I buried the bodies, etc. Actually, I did once and it was all cool but I won't make a habit of it. Too much potential for weirdness from a rare bad apple.
I'm trustworthy and I'm a nice guy but I've got my own problems so I wish everyone would stop asking me to hold onto their internet banking details for safekeeping and just memorize your passwords you meatheads.