Bert,
I looked one day at my reviews and had a similar result. I initially wanted to respond to the negatives and of course agreed with the positives, but I lost curiosity extremely quickly with the whole concept of the internet physician review process.
For me personally, I am not building a practice, and the patient that is dissuaded by a negative review and leaves my practice is just fine with me. So I distilled the whole review process to not unlike a high school popularity contest. It reeks of puerile intent, and as you, have not even looked again nor do I have any desire to look again.
