In my experience, those get downvoted or flagged (they also aren't in line with the guidelines). Let alone shallow dismissals, even good Reddit-esque short, pithy jokes often get downvoted, because a discussion thread where everybody's just trying to be funny doesn't tend to lead to where most HN participants want to go.

Talking about downvoting also violates the guidelines (meta-discussions are boring and repetitive), so this comment could arguably succumb, haha. If so, it won't be the first or the last time a comment of mine gets poorly received!