i've read a few posts where people have done this but I don't see how it would help. I actually have wondered if anyone has used it to help with charges.
the way I look at it, unless the photos are time stamped they could have been taken any time through out the cruise. even with a time stamp, you 'could have' put the pillow in your luggage after the photo.
if I was that worried about it all I would get my room steward to check the room when I left and have him sign off on it in the form of a signed note.
anyways, do you know if this has ever helped anyone? its better than nothing I guess but its just so full of holes. I can't see
dcl saying okay, you have a picture, i'll take it off your bill.