But while we're on the subject, Bitcoin is a terrible market for short-term trading. Low-volume markets are nasty, and you're likely to lose your shirt.
I disagree. There is plenty of volatility, and trading can turn volatility into profit. Low volume is only a problem if the volume is low relative to your trading capital and frequency of trading. People have suggested dollar-cost averaging and buying the dips... that's already half a trading strategy. Use the corresponding techniques on the sell side and you're a trader.
We should be encouraging traders, as they will provide liquidity and smooth out some of the volatility. Exactly what the bitcoin economy needs.