Sentence:  Wales wished to delegate the substantive disputes amng editors, determinations of which editors have the "<WSD>CheckUser</WSD>" power to check IP addresses of suspected vandals and the oversight power of "enhanced deletion" over libelous material or material that infringes copyright, and decisions about banning users that he had heretofore made on his own. 
Meaning of the word marked with <WSD> tags:  A tool that allows someone to view the IP addresses of wiki users, so as to identify sock puppets, etc; or the authority to use that tool.