[danem]

With the way I look at the review system, an O-Ring certainly could be worthy of 5 stars. By rating something like an O-Ring less than 5 you are implicitly saying that there are better o-rings out there, and that this one could be better. I don't see a rating for a given product as a comparison against all possible other products.

[JohnFen]

Yeah, this sort of discrepancy in the way that people think of ratings is why I no longer give or pay attention to ratings.