Sysops are users who are trusted with additional technical features. They can block and unblock users, delete and restore pages, protect and unprotect pages, as well as edit protected pages.
For a list of sysops on this wiki, click here.
Sysop rights will be given to users as deemed appropriate by administrators. Users who cease to participate will have the rights removed after a period of inactivity.
Administrators page of the MediaWiki manual