Having people take coins that don't belong to them doesn't represent the "real world"... unless you're talking about the uncivil portion of the world where everybody is poor and outlook is bleak.  To you who took the coins and claimed they were yours to keep, I consider you equivalent to a scammer.  You took advantage of a service someone provided you as a favor, and you stole something with the nonsensical justification that you "could".

That's the same way it works in poor neighborhoods.  No one there has anything, and part of that is because they have to spend their life protecting what little they've got, because someone else feels justified to take it just because it's not locked down.  That's not the way to prosperity.  No one gets ahead except at somebody else's expense - the net result is the entire community stands still.  On the other hand, in less desperate places, opportunities to steal are boundless, but people rarely take advantage of it because they choose to do things that get them ahead without setting somebody else back - community thrives and prospers as a whole.

If the idea is that the person who built the service that sent the coins is in error and should have known better, perhaps you're right.  Perhaps he should have known better than to provide a useful service and pitch in his time and talents to provide something to improve the bitcoin community.  Perhaps no one should do a damn thing for Bitcoin and take the risk that a fucker like you might grab their nuts and twist them.

What a fucker you are.  I don't know you, or the person you stole from (yes, stole), but I will be very gratified if I ever hear you got your ass handed to you for this.

This theft is a setback for all of us as a community.