I think it has something to do with the iphone. I usually have to flip pictures I took with my iphone before posting.
I have never noticed any upside down photos on CR, but I see them all the time on Facebook when people upload straight from their phones.
Maybe people on CR are posting straight from their phones.
My other guess (which seems more logical) is that the pictures are taken by vampires in order to lure you to their lair in order to turn you into one of them.
Happy Halloween Folks!
NY Bassists Club #67 * Musicman Stingray Club #488 * Fender FSR Club #48 * U.S. Peavey Club #329 * Fender Jazz Bass Club #1201 * Bassists Who Skate Club #28 * Ibanez Club #1106