[quote name='ApochPiQ' timestamp='1345766639' post='4972807']
Please point out one thread wherein someone has "thrown their opinion around" at you, in a "hurtful fashion." I don't see it happening.
You're missing the point, and it doesn't seem like this is reconcileable. I know you don't see it happening; this is why we are still debating it. Imagine if you work hard on a science fair project, and it is so near completion, and you ask your teacher how to achieve a certain effect to finish it, and he asks, "How is this useful? What purpose does this serve?" Chances are, you won't be able to convince him, because if he cannot see how your project is of any use, he's probably going to be set in this idea. Not only will you not get help from him, but that hurts. It just does.[/quote]
Actually, I would EXPECT that a science fair project be analysed in just such a way by the judges. Haven't you ever noticed that the science fair projects that attempt to solve some sort of societal/technological problem or at the very least demonstrate aspects of it (ie. projects that have some utility) tend to rank the highest, and usually win? How often have you seen "baking soda/vinegar volcano #427 win a science fair? If I were trying to win a science fair (not just participate in - actually win), I would probably ask everyone I knew to judge my project the way the judges would. You might have picked a bad example there.
Nobody I know would find the questions you just quoted hurtful; in what way is it hurtful? Maybe I personally would have appreciated such questioning at the start of my project where it would have made the most difference, if I hadn't thought about it myself. If I had thought about it, and knew what my use cases were, I would likely relish the opportunity to wax poetical about how awesome my idea might turn out if I got it working.