Who is able to delete wiki spam?

http://haskell.org/haskellwiki/?title=Special:Contributions&target=Tomso123

All the pages created by this user appear to be spam (check the google
translation) so the account should probably be deleted too.

As I understand it, any registered user can revert changes to a page:
http://www.haskell.org/haskellwiki/Help:Editing

However if a registered user creates new spam pages then other ordinary
registered users cannot revert that change.

Is there some way of reporting spam pages to the appropriate people that
I missed?

Duncan