Earlier quoted context omitted.
Playing 00's music on an 80's radio station isn't challenging someone's fondness of 80's music, it's just annoying.
I was disagreeing with the premise that Hacker News is, or should be, very narrow in scope. Though I'll grant you that there are certainly degrees to this. There are regularly posts that make me wonder why they were posted to HN when I first see them here - and yet, these often manage to enrich my day. There are risks to making too many rules about who gets to be a member in your club.
And no risks in being too open about who gets to be a member of your club?