There's two conflating issues here - one's definition of "mean" and what level of experience gives one the right to determine someone as "mean". If we are to a

There's two conflating issues here - one's definition of "mean" and what level of experience gives one the right to determine someone as "mean". If we are to assume that pg is in fact correct in his conclusion, then what are the examples (data points) that would bring one to this conclusion?