Don't forget that it was then Microsoft CEO Steve Ballmer who in 2001 compared Linux to cancer. If there is childish vitriol somewhere, it did start neither on HN nor on /.
You keep saying that they're different, but to my old eyes you're just buying their marketing.
They still have horrible security.
They are still product dumping.
They're still ignoring user preferences and forcing their agenda (eg: Edge)
They're worse than ever about user privacy.
I could go on. I don't like Google either, but your corporate loyalty is silly. Both can be and are terrible.