Who currently has access to MediaWiki, anyway? I see from an earlier thread that Stephen Ewen does (I think? - he set a config flag), and I guess Zach Pruckowski and Jason Potkanski do, as does Greg Mullane, but none of those three seem to have been active recently. Aaron Schulz knows about PHP, but he says he doesn't have access.
What status do you require to be able to access mediawiki? If Aaron does not have access then beureaucrat is not enough. The current bureaucrats are:
Aaron Schulz (Bureaucrat, Sysop); Bernard Haisch (Bureaucrat, Sysop, editor); Greg Sabino Mullane (Bureaucrat, Dark Knight, Sysop, editor); Jason Potkanski (Bureaucrat, Dark Knight, Sysop); Larry Sanger (Bureaucrat, Dark Knight, Sysop); Peter Hitchmough (Bureaucrat, Sysop, editor); Ruth Ifcher (Bureaucrat, Dark Knight, Sysop).
Neither Stephen Ewen or Zach Pruckowski are in that group although Stephen has a unique status of "Linnaeus". Not sure what dark night is but I guess that is to do with the server.