I am just a little curious: what is the MAIN problem, why is wiki off?
Is it a problem of money (server subscription not paid), hacked/cracked server, no time from developers (better things to do), no general/focus interest on wiki docs?
Is this problem worked on, what time frame do you estimate it needs to be fixed?
Info is generally available, internet searchable, etc. No big deal for motivated user.
Therefore, it seems to be a management-diluted resource.