I was an early proponent of G+ when it first opened. I loved the idea of Circles and their implementation of Groups was really good. I didn't love the UI, which I found bland, but the functionality was well thought out. For a while I used it as my primary social media site but Facebook was entrenched even back then and nobody I knew used G+. I don't really understand Google's strategy. They got rich by providing usef…
This narrative misses a lot. The most important part was the purchase of FriendFeed by Facebook and the failure of Google Buzz (the more open predecessor to Plus).
The narrative I've heard is more like this (It goes back over 10 years, so the context is much different. Google was much smaller, and there were many doubters about Facebook).
Facebook was founded in 2004
By 2007 it was clear that social networks were a thing, but there was a very strong feeling among technologists that they should be more open.
During 2007 a bunch of pretty well credentialed Googlers left to start a more open social network called FriendFeed. This aggregated open sources of content from all over the web.
This worked fairly well technically, and people at Google were generally supportive of it (there were many Googlers on the service, and they were actively working on things like PubSubHub[1] to make open aggregation services work well.
However by 2009 it was clear it FriendFeed had product issues. It was being used just as a republishing tool (primarily from Twitter) and they ended up selling to Facebook.
This upset a number of people at Google, who were relying on it to create an open alternative. These people were involved in the creation of the (mostly forgotten) Google Buzz[2], which was basically a clone of FriendFeed.
Buzz failed as a consumer product, so then Google attempted the pivot to Google Plus.