My intention with this was that HN users are 30+ (Millenials and Baby boomers and Gen X) and some of the HN users are baby boomers and oldest gen X who are close to retirement/retiring as you mention.
I should've written it (or what was my intention) instead is that "most HN users are millenials, they joined programming decades ago & some HN users might be close to retirement/already retired" (I didn't mean that millenial population is retiring)
Millennials are in their 30s-40s. Baby boomers are retiring, and the oldest GenX are close to retirement.