As far as I can tell, I have FIVE Google+ accounts (there may be more!):
1. Nickname email for friends
2. Real name email for family/jobs
3. A SECOND nickname account that somehow got created when I logged into YouTube one time
4. A SECOND real name account that somehow got created when I logged into YouTube some other time
5. The YouTube channel I shared with a friend, which has a Gmail account but inexplicably is only a single Google+ account unlike the two listed above
I honestly have no idea why 3 & 4 exist. They seem to have gotten created at some point for some reason I never understood.
In my eyes, the biggest problems with Google+ are:
* It's CONFUSING AS HECK. Just figuring out what an account is, or why it got created, is way more effort than I care about
* Their integration with YouTube was ridiculously not thought-out. Not in ANY way. They somehow seemed to think there was a 1:1 relationship users -> channels, when in reality it's a many:many relationship. Why did they think that? Why didn't anybody say, "uh, guys? A person can have more than one YouTube channel. And two people or more can run a single YouTube channel."