I talked to a social worker with the family court in a neighboring county. I told her my CPS story, just as described on this blog. I did not expect her to believe me. But she said that she has heard lots of such stories. "It is more common that you might think", she said.
She said that everyone in her office was startled to learn recently that a CPS finding of abuse in her county had been reversed by state officials in the state capital.
I guess that she was trying to give me hope, but it sounds like 99.99% of the CPS findings are not reversed.