Negative SEO against Yelp?

If Yelp keeps filtering out most of your reviews (which are actually legitimate), what do you guys think about buying obvious link network links for Yelp reviews?

At first, I was thinking it'd be great to link to the review itself to generate a bunch of indexed 404's once reviews get filtered. However, reviews don't get dedicated URLs, like with Facebook comments. Instead, they use dedicated URL's for businesses and reviews with arguments at the end (sort of like a UTM parameter).

Do you…

Negative SEO against Yelp?