PlanetsCentral

doesnt say much about the whole thing.

And what is "whole thing" exactly?.. Yes, some of races should win fast, and for some easier to win after long period. That's why we need formal end condition.

Also, I proclaim that I will win this game.

Look, if you want to win, and we believe you really can, we may vote to end game immediately, and you'll left at your current place. So, I think, we need end condition.