I was on my birthday, I said thanks to all who welcomed me into their circle. I had at that time more than 55,000, who were interested in my work.
That was on 11/19/2015, almost two months later, now I have 150 less, of course, can be that it is again 100 more tomorrow. It is not clear how Google counts these +/- to members.
I told as joke, I delete my account if it happens again. Now there is also another way, I will be somewhat inactive in the near future.
I am a human being, and the people made me circle also, we are no alogeritm for a computer program.