Something I just thought of.... EBAY!
When most of you people get a steal off ebay, 'cause something was miscategorized, or spelled wrong, or the seller didn't include all the features in the listing you go an brag to your family and friends about how awesome a deal you got! Why didn't you email the seller and tell him? Ok, I'm sure there are a few cases so don't even bother posting them, I believe you. The point is that most arguments in favor of "moral obligation" to enlighten the buyer won't fly... for this particular situation.
Peace! I'm not trying to fuel the fire! lol.
