From somewhere in the warren of links to dang posts I traced out from there:
> I think people have the wrong idea about HN downvotes because they think Reddit rules apply to HN.
That one gets me, because I had previously assumed that downvoting for disagreement would be a standard Reddit thing, but that HN's community is supposed to strive toward a more "we're all mature adults here" kind of community standard.
Downvoting for disagreement has always been ok on HN.[1]
I don't really like it, but it has always been the case on HN. The question is if the community voting behavior has actually changed.
[1] https://news.ycombinator.com/item?id=17666145