Not sure whether that is a PS'd photo or anything, but if it wasn't a PS'd photo, then Edward still has a very good reason to ask you all these questions. You probably used a coin mixing service, which is dodgy.
However this does not sound like Edward at all. Why does he need to know when you first heard of bitcoin? Do you have any other bitcoin gambling accounts? That's just questions that don't really make sense.
My thoughts exactly. Seems like some kind of survey just circumstances it's taken are... weird.