"Your information is now public" ... as in, your full name and the fact that you went to Outside Lands and lost something? I don't see what the big deal here is. Coachella had a very similar practice when it came to trying to reunite owners w/ their IDs and credit cards. They are not posting credit card numbers, they are not posting cities... there is nothing identifying at all that would pose any danger to these people in real life that cannot be found on a public LinkedIn or Facebook profile.