All EXIF data should be removed from all uploadet to the log photos.
It is necessary because it is one way of cheating while puzzle solving.
Players do some photo of the logbook or some stuff around the cache (not spoiler photo)
but with geotag from EXIF data puzzle is simply compromised.
It is not fair, that the D5 puzzle is "solved" because of photo in the log.
Cache owner has no control of that situation.
Another argument is: EXIF data are part of privacy and are automatically removed in most web sites (except photo sites) and in all messengers.