If a *person* knows the forum rules , then in this case he will be able to handle the reports.
"Just because you know something doesn't mean you could do it!" You may know how to write a novel but that doesn't mean you could be a novelist as you may lack creativity, thinking skill etc...
Now I do not think new moderator is needed (maybe only for the local boards, if someone of us can speak/write (fluent) various languages maybe he will have a high chance to manage that section ).
Local boards such as Russian and Italian need a mod but for Italian board, as Hostfat said he could manage it himself, I doubt theymos will add a new mod.