Disagree. This can be gamified. People can use it to promote their own twitter profiles by mentioning posts of high-profile hive bloggers/witnesses. It ends up being pretty spammy. I had to take down my @exifr bot because of complaints about it being spammy by creating a separate comment for each photo. My argument was the same
Well, most posts will only have one photo.
Famous last words.
Most everything can be gamified.