I just deleted the Google+ account for uncovery minecraft. I got the news that some organizations that opened a + account have had their complete Google Account deleted, including YouTube, Gmail etc, because only “real people” are allowed to have a Google+ account. Since I do not want to risk that, I removed + from the Google Account. The google docs and the Youtube account remain therefore.
I will open it again once Google allows to have organizations have a + account, similar to pages in Facebook.