Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
If you don't want to be smelly then use something like this. It does hide the smell so it does work. The only down side I can see is that because it's glass if you drop it it will break so don't drop it since when you're likely to be using it you're likely to be in bare feet on a surface where it will break easily so don't do that.