This is the response of Dr. James McCarthy, Associate Professor of Geography at Penn State. He taught an amazing class Property and the Global Environment which I took a few years ago. The course focuses on environmental issues coupled with who owns the problems. (ex., I can pollute the sky all I want because who owns that).
Anyways, here is his response:
In terms of whether taking the money is "stealing people's dreams," my own take would be that putting the money in is a purely symbolic act; there's clearly no connection between the placement of the money and a given outcome. It's basically the equivalent of leaving a sacrifice on the altar of the god of your choice -- it used to be a goat or something, but we now use state-backed currency to represent value, so we use that instead. [In that respect, one interesting angle to research would be the origins of this custom.] So you're not actually depriving the people who put it there of anything: oddly enough, it is precisely putting the money into the well or fountaing that gives them the satisfaction. Moreover, no one (I think) puts in any amount of money that is more than a token to them.
At the same time, it is a commons of a sort: if everyone scooped up money as soon it as was put in the fountain, people would stop doing it -- for ritual purposes, it seems to be important that it sit there, at least for a good length of time.
Another interesting angle to explore would be what happens to the money otherwise. It presumably stays in wells, but in the very common shallow fountains in public places where this is done, I think the municipality or government agency that owns the fountain periodically gathers it up and adds it to their general funds. So on the one hand, you are just picking up money that is going to be picked up a government employee at some point anyway; on the other hand, you are arguably appropriating and privatizing money that would have become public property.
James
Well, that's the opinions of one of Penn States more intelligent professors. Let's hear your thoughts. Cheers.
-wtk