I really don't think the liberals/conservatives/democrats/republicans/libertarians/Jews/Muslims/Mormons/illegal aliens/terrorists/socialists/Catholic priests/ Gypsies /anchor babies (insert personally applicable ideological boogeyman du jour) have an agenda for misrepresenting the attack speed of a longsword in Elemental. You keep bringing that point up, but I think we can safely focus our discussion on the scope of the sort of game wiki's involved, which are no more likely to suffer mischief than any other random site on the web. They're simply not big or important enough, nor do they deal with issues contentious enough to solicit such hijinks.
And again, you keep making these statements indicating you think community wikis are somehow inferior efforts. All evidence to the contrary. Game community wiki's frequently exceed expectations, and are far more accurate and in-depth than any third party game guide you could purchase. A developer is just as likely to make an error in a closed wiki as a community member in an open one, assuming they are documenting the same information...except an open community wiki will be subject to more editorial scrutiny and more quickly corrected. There is simply no evidence, in my experience, to support your position on the sort of wikis that are germane to this discussion. I'm sorry you had a bad experience on Wikipedia proper, but it doesn't really apply here.
The only real difference between community wiki's and developer wikis, is that the former actually exists, often thrive, and are within our power as a community to effect, whereas the latter is mostly wishful thinking.
And once again, to sum up to any third party thinking of jumping on me for saying "Wiki's are better than manuals", please understand that is not what I'm saying at all (even though it's often true). A community wiki doesn't alleviate the desire for Developers to reasonably document their games (if the developers don't document the way the game works sufficiently, you can't magically do so in a wiki, at least until some enterprising player reverse engineers the game and documents it), not to mention portability preferences. Somebody asked how they can help with documentation...beyond post release error reporting, you can't really help Brad write the manual or write it faster...but the Elemental Wiki is within your power to help with, and will need updating with the new game version. I simply got sucked up in discussing some of G.W.'s anti-wiki rants and conspiracy theories.