Why in the world is this flagged?
“Off-Topic: Most stories about politics, or crime, or sports, or celebrities, unless they're evidence of some interesting new phenomenon. If they'd cover it on TV news, it's probably off-topic.”
Many people here will consider this categorically off topic and flag accordingly because politics doesn't satisfy theirs. Even if it's a good article, and even if the discussion is on-topic and civil.
It means "anything good hackers find interesting" and anything that "sparks curious conversation."
What does that mean? I don't exactly know. Certainly nothing objective. In practice it means whatever the people flagging the thread decide it does.