Better management of bad quality reviews

Recently i have been rewatching Hercules: The Legendary Journeys, and have been following along on the IMDb pages because I like to read the trivia postings.  On a few of the episodes, however, I have seen some absolutely terribly written reviews, all left by the same person.  This reviewer obviously does not natively speak English and did not bother to learn proper English syntax, and his reviews are barely, and in a few areas, not at all, legible.  They look like he did a review in whatever his native language is and then just ran it through google translate before posting it.  And the one, at least, is completely insulting to the choices a female character (and by his insinuation any woman who may make the same choices for whatever reason,) made in the episode.  I've reported a few of them, and explained the reasoning, but they have been denied.  All the other sections can be edited and/or not allowed because of issues like this, so why is it that nothing will be done about the quality of the writing in reviews?