I was hanging out over at Matt Cutts’ blog today, where the subject at hand was SEO Tip: Avoid Keyword Stuffing. The discussion centered around a site that was blatantly stuffing keywords on its pages, and happened to get banned by Google. The conversation turned, as conversation tend to do, to other penalties sites suffer, and how not all sites that were penalized actually deserved them.
My attention was caught by a comment by Aaron Pratt, of SEO Buzz Box, having to do with the penalty of Supplemental Pages: