This is really interesting.. A long time ago, lcamtuf published "the rise of the robots" which basically used google/search bots to perform attacks against a victim.. it was cute and forward thinking (like all his stuff normally is).
Now reddit/flikr/etc turn the human into the robot which makes it "the rise of the (humans)?"
It would pose interesting questions if adobe now did a forensic analysis on their site.. can u go after grandma who clicked on the link on reddit? can u go after reddit?

if not.. hiding in plain sight becomes possible.. just publish the urls u hit, get them upvoted (nicest pic you will see today) and watch as hundreds of others muddy your prints..

/mh%00