I think that it's a quite unreasonable request. If one mod starts handing that, it won't do good for his mental health on long term.
Reputation board tends to look like a snakes pit. Sometimes I tend to stay away from there myself.
Mods are human and probably sometimes check the things better and sometimes don't check them enough.
Even though in theory one mod could handle this better, there are 2 bad options: either he would handle only Reputation and sooner or later he'll get sick and tired of all the drama, either he will have to also take care of other subforums too hence splitting his attention and time.
Maybe we simply need more mods and that's all.