Day trading is not without risks, I had a stint with a life as a day trader, and gave it up. I later decided it liked palying the actual game, far more than working the 2 AH.
A "Good" (and I use the term loosely) Daytrading operaion starts up with some capital someing over 30-40 gold(folks have done it with less), that ammount of money lets you buyup any stragglers that underbid you. The problem is that if the price gets too high, folks will just make a level 1 toon and go out mining, and you are stuck with thousands of copper bars, that you may have to wait a week or 2 to sell when the price restabelises, but will you have enuff money to do so?
I am a firm beliver that their is money to be made on the AH,I am just not enuff of a butthead to invfate the price of any item, so that I can make money, I do my best to put a farir price on said item, and sell it. Trying to leach extra cash out of players is like being a used car salesman, You think you have done well, but you just succeded in being an selfish, greedy, slimebag. Do as you wish , we all pay a fee to play, but as in reality, their are lowlifes that think they deserve somebody elses stuff, and their are genuine good folks.