I am not sure there are too many people here who may be able to answer that question. I install and use mediaWiki but it is pretty much black box stuff. Might you not be better off asking this in mediaWiki or somewhere on its manual help pages. In any case, I would expect that this sort of editorial role would either be at an admin or a bureaucrat level, probably admin or maybe only a sysop thing - but that could put far too much work on the sysop.