Just got my coсk rated 6/10 I know this is statistically above the mean but still can't help but feel that due to the phenomena known as rating inflation that 7/10 is closer to what people perceive as the average. I guess it depends whether you see the average as the middle value of a set or which value is seen most frequently within the set. If it is the latter then this is actually a criticism against qualitative modes of measurement, like ordinal data to which values are not derived relative to a true zero but instead amongst themselves, therefore making them arbitrary.