There might be some sampling bias with an HN user dataset. At my company, many of our customer service calls are from older people, especially women, who call b

There might be some sampling bias with an HN user dataset. At my company, many of our customer service calls are from older people, especially women, who call because they don't like using the internet (or they don't even have internet). Different voices and patterns of speech. This could be a really different demographic from HN users.