Oh yes, very good point to have only a single place to maintain!
Besides easy maintainence I think another important point is user-friendliness...

From my point of view, the bug page is not the place where the average user looks. And I also think posts can not be updated there, resulting again in a confusing number of separate posts.
But most important, as I understand the bug page it is not the place for such a purpose!?
But of course winning those guys over there as testers would be great, but aren´t all of them also at tmo?

I really like the idea with the wiki, especially because it can be edited by everyone and not only by one person like a forum post (hope I am right here: tried once to edit a wiki but was not able to as it required a special account,right?).
What I am not sure about is the user acceptance of a wiki page as to me the community seems very forum focused...

Well, to me the best approach seems to be a new thread with a short first post explaining that all relevant information can be found on the wiki page...
Aehm well, at least if the wiki will be faster again, it doesn´t even open for me at the moment