1) Too much work
2) Not a chance of actually finishing
3) Everyone does an April Fools Prank, IGN's was pathetic. I could tell it was fake from the start. And you'd have to be pretty dense to fall for it.
4) Pointless
5) Bound to be ridiculed
6) TP had a not so good story
7) I doubt anyone has the actually software to make a good anime
8) How do you intend to voice it?
9) What's the point?
10) No one is gonna seriously join and work hard on this.

10 Good Reasons to abandon all hope of this ever working. Now if you have a realistic idea on your hands feel free to come back any time.