I think this is a massive exaggeration. The people who don't care about linking their accounts (like me) aren't filling up the front page of HN with "The google plus thing is fine I guess" stories. I don't care if they ask for my phone number, I've got an Android phone so the data is all already there, and I like the security of having it text me to check it's actually me signing in from some new computer.
I genuinely find the level of complaints embarrassing. I've seen someone call being asked to create a G+ account "sickening". Sickening. What an astonishing first world problem, that one of the worst things happening to them is being asked to sign up for a free account with a company you already have a free account with. The horror!