It's not anti-google, it's against a thing Google happens to be doing. Google holds an incredibly powerful position on the internet, so when they do something that could be bad it affects a lot of people. In this case, you could argue it affects pretty much everyone who uses the internet.
You don't get to be the biggest entity on the internet and keep the cutesy hacker facade, they've got an enormous responsibility to the community now.
I have often noticed that the mods alter the ranking of posts, but I don't think that they did in this case (they admitted doing it in some cases). The content on HN is very much curated/controlled.
You don't get to be the biggest entity on the internet and keep the cutesy hacker facade, they've got an enormous responsibility to the community now.