I think the downvoting is pretty ubiquitous across HN now-a-days. This will also happen with any criticism of Apple, for example. Most of HN is an echo chamber as evidenced by the often off topic posts and discussion that reach the front page. I still come here for insight but I rarely have in-depth discussions here because HN and the crowd simply no longer cater to that kind of discourse for the most part. This is probably due to its increased popularity.