I'm going to state the obvious on this again (at least I think it's obvious). Often, the quantity of reviews is in no way an indication of the quality of writing. In the process of cleaning up and reordering and whatnot, I've seen a load of stories I'd never bother to open but for the task I'm working on, that get more reviews than you can shake a stick at. Yet, I'll also run across very well written stories, which have little or no reviews, often not even a rating.
I think it's because you have some people (I'm not a writer, so have no idea, truly) who have their friends and the clique they happen to belong to, review their stories, and review them as being wonderful, whether or not such a review is deserved. Often, those reviews are not deserved.
Just my two cents..