Let's reset: I think the downvote should be used for low-effort, non-contributive comments like "lol" and "^this". Do you disagree on that point?
Next, I'll admit to self-puffery, no doubt my ideas are not as clever as I imagined when I typed them. However, I don't believe in downvoting merely based on philosophical disagreement. If I'm seen to "downvote brigade" against that practice, so be it, but I believe and will publicly state that downvotes shouldn't bury something that goes against HN/tech/societal orthodoxy. This is how hive-minds and pile-ons form; diversity of thought and opinion is healthy, and challenging one's own assumptions is illuminating. Do we want a community where a differing voice is grayed out and bottomed out within minutes?
Why do I care and fight for broader discourse? IMO, Social media can tend to reduce complex issues to mere scores based on camp-size, and I am fighting to re-complexify our dialogue. Let's upvote towards solid discussion and relish complexity and diversity of thought.