I've been reading HN for years, but I honestly have no idea who Kottke, Gruber, or Winer are. Who cares about this nth-level gossip about people who like to go

I've been reading HN for years, but I honestly have no idea who Kottke, Gruber, or Winer are. Who cares about this nth-level gossip about people who like to gossip about other people?