Then put a sarcasm tag on it or write it such a way that it is obvious it is a joke. The fact you received a few downvotes for it implies that there were others

Then put a sarcasm tag on it or write it such a way that it is obvious it is a joke. The fact you received a few downvotes for it implies that there were others who took it more as a snark than a joke. Keep in mind, this is HN, people come here for serious discussions (although subjectable), so it is hard to get away with a joke, especially a one that adds little or none to the discussion.