I seldom post lengthy comments on HN, and when doing so I tend to include qualifiers such as, "I know that the Bay Area is overrepresented among HN readers, and

I seldom post lengthy comments on HN, and when doing so I tend to include qualifiers such as, "I know that the Bay Area is overrepresented among HN readers, and the preceding opinion is based on a perspective from elsewhere." ... "I know that 20-somethings are overrepresented among HN readers, and the preceding opinion is based on an older perspective." Etc. Invariably, one of the top replies boils down to, "Hey! I'm a 20-something in the valley, and I see it completely different!". Well, yeah.