This is NineeLee's TrustRating, which is based on both the number of reviews NineeLee has written, and how many other people have voted those reviews as "helpful." It's a way to quickly to determine the value of any single review or reviewer, because it's based on how helpful NineeLee has been to the Kudzu community.
I actually went to their store in Brooklyn; really nice stuff! Good selection of frames, latest styles. I really like the doctor who checked my eyes, Dr. Veiner was nice and knowledgable. I will be back!