Yes, I did. To both.
I have said many times that my "mendlebread" comment was one of my bigger regrets. And I apologized to Alan. Sometimes you just get caught up in the heat of the moment. But attacks repeated 100 times isn't "getting caught up".
With both Singer and Mdawg, I have attacked back. But only long after they have repeatedly attacked and lied about me.
I generally am of the philosophy that you should attack or challenge the claims (the person's word) and not the person. That is what I have tried to do. I object to the claims by these two. And they responded by attacking me and others personally. THAT is their playbook. And after a while I respond in like.