Look guys in general, if this is an established lady or agency they aren't trying to set you up for trouble. Now if it is a brand new STG ad that seems to be too good to be true, and she has ZERO history on this site or others, well??? Use your common sense.
I mean when I was younger I would show my ID to buy beer. I have on my Credit Card ask for ID, I never get asked for my ID but that is a different issue. Or whatever their screen process is understand their concerns too. If you're not comfortable, well that is fine too.