I used G+ a lot a few years back, and I did dozens of posts of logs of projects and so on... and then one day I wanted to refer to one of them to someone and discovered you can't
search you own posts.
That immediately stopped me posted anything. It's almost write-once, read never sort of medium. It's too bad, there were a few good ideas and so on, and I had a bit of traction of a few good 'circles' but I'm pretty sure that like me, everyone else stopped.
Now, I have to figure out a way of re-importing all that content to something else, probably homebrewed this time.
IN FACT I've just checked, and G+ seems to have forgotten every single post I've made, but one. https://plus.google.com/+MichelPollet
EDIT: Now the posts are back. I must have been archived on CDs or something ;-)