Does the web need another freelancing website? No, but if put correctly it can be unique and highly profitable.
The idea is to provide a freelancing job board for "temporary", "small (under $1,000 or $2,000)" and "location independent" tasks. The point is to price fairly. Unlike other freelancing websites, it's hard to stand out of the crowd. Even if you did, you get paid $10/hour or even less. Rarely you get $25/hour and only if you got clients that likes your work.
But the situation here should be different, less quantity and less tasks <> higher quality and higher pricing. ($60/hour is a good rate for a good programmer).
Freelancers are scored based on a formula based on their score. (The formula needs to focus more on users' responses and answers more than the questions). Buyers select the freelance based on his/her score, pay should be higher than freelancing sites (not less than $50/hour).
In return, Stack OverFlow makes developers to work harder on the site. Freelancers that wants to do quality work and get paid fairly will participate on SOF to get higher scores, they'll try to post better answers and more explained.
This is for the profit of all. Buyers that will get quality work (and not spaghetti code), freelancers that will be paid fairly and SOF that will get better answers and discussions.
What do you think? (If you are not interested in hiring/freelancing, so think about your mates, don't be so selfish and say NO just because you don't need it, try to discuss the advantages and drawbacks instead.)