Who has admin privilages for the bitcoin wiki? Who has an admin user?
I know Stephen Gornick has. Who else?

Who besides MagicTux has technical admin credentials? (server access)
Any mediawiki installation have a special page giving you the list of all the admins .

For the bitcoin wiki,find it at :

https://en.bitcoin.it/w/index.php?title=Special:ListUsers&amp;group=sysop

See also :

https://en.bitcoin.it/wiki/Special:ListGroupRights