i thought this is very relevant to a site like this. so whenever you take a photo, the file itself will have meta data built into it. this meta data can contain GPS co-ordinates, where and how the photo was taken and a whole host of other info that could be used to identify you. There was this hacker who would post photos of his girlfriends boob on a site that he had just destroyed. He didn't remove the meta data and is now in a federal prison. It makes alot of sense to remove all this potentially incriminating info before uploading any of your photos to a site like this. google meta data remover, its not to hard to do.