Very true. We'll reply, "You were lucky! Now tell us when to buy at the low.", and the prodigy, like a best selling author afraid to publish their second book, will reply, "I'm not going to tell you losers when to buy. You dissed me last time!"
If we're lucky, the prodigy will then storm off to elitetrader to make a living as a day trader and leave the MMM forums alone.