If you want to get flagged, the best way to do that is to make an irrefutable strong argument that ruffles political or economic feathers of a popular ideology on HN. There's nothing that enrages people here more than an unpopular but sound argumen they don't like, so they flag it to make it go away. If they can quickly disprove you or make you to look an idiot, they'll downvote rather than flag so that everyone can see their moral or intellectual superiority in the full thread.