diversity

Those are all good points (the grandmothers/elderly thing). I've seen this play out on Chowhound. Most chowhounds seem to be baby-boomers, but I've seen a couple of people self-identify as in their sixties or seventies, alongside pleas for less-rough language. Most people accommodate them: most people don't actually want to offend others, and will try to stop once they're aware that's what is happening.

I've also just read Flo-Night's comment about Wikimedia feeling like the seventies and eighties (from a gender perspective), and ITA, that's exactly what it feels like. Not at every moment in every way, but there are definitely echoes.