The downvotes on a comment like this reminds me of my days in university... downvotes are for unhelpful or incorrect content, not silencing people you don’t agree with.
Please don't break the guidelines by going on about downvoting. When you see an unfairly downvoted comment, simply give it a corrective upvote and move on. Other users will typically do so too, correcting the problem, but comments like this one linger on as noise.
https://news.ycombinator.com/newsguidelines.html
It's a common mistake to think otherwise, but downvoting for disagreement has always been ok on HN.
https://news.ycombinator.com/item?id=16131314