If it were a tough job market, I could see this as a good way to get some initial experience/resume fuel out of college.
I need money to pay off student loans, rent, food, gas, etc... Equity in startups is highly illiquid and turns out to be worthless more often than not; I can't take that risk.
I'm not sure exactly what the sweet spot demographic for this site is, but I don't see it being me or my peers.