I'm coming to the slow realization that sometimes the best action to take in a blog comment situation is no action at all. The letting go is is an even slower process.
As I sat at the computer and stood in the shower thinking this over numerous times this week, it dawned on me that each interaction with this particular comment poster has brought zero enlightenment to most anyone involved. Maybe I was the one who needed enlightening. Why respond to someone who obviously gains nothing and I only gain more frustration?
I engaged in an exercise that helped me work it through. I copied and pasted all of the comments into a document for review purposes and quickly crafted a response that touched on all the things that were bothering me. Then I saved the document and walked away.
True letting go will be achieved when I hit the delete key and then make sure it's irretrievable.