I upvoted, if nothing else it's a perfectly reasonable comment with an interesting hypothesis. HN karma is a little weird. IMO, if you've never been downvoted

I upvoted, if nothing else it's a perfectly reasonable comment with an interesting hypothesis. HN karma is a little weird. IMO, if you've never been downvoted to -4, then you've never said anything really interesting. It's easy to just tell the crowd what they want to hear, saying true and important things doesn't always go down so well. Don't sweat it too hard. Sometimes posts do acquire downvotes at suspicious times and rates. Makes me wonder if some external orgs managed to build downvote bots for HN or are directing voting somehow.