It's like a cellphone that you cant call anyone with. No one really cares if it's 1000 times easier to use if you can't call your friends.
They took something benign but useless and made it non-consensual. Google+ is now the equivalent of all the cable channels you didn't want but your cable co made you buy anyway.
I was an early adopter of G+ because I didn't like the heavy handed BS from FB. I still begrudgingly use FB because alot of my friends are on it.
To me, G+ having a niche audience is a feature.
That's not a feature, it's a bug that google is trying to fix by shoving g+ down everyone's throat.
And now you know why they're unifying their account system under Google+. Being able to include everyone who has ever had a YouTube or GMail account in their social network means that suddenly, people you know _are_ on Google+.
This is nothing new. This is basically the sequel to the YouTube -> Google Account transition that happened a few years ago, except this time it's in a post Google Reader shutdown world so Google is no longer the darling of Hacker News and Reddit commenters.