I have never made any promises to my trail followers that I would never flag any posts or comments. Regardless, as I stated, I very rarely flag content anyway. I made an exception in his case, because as you can see, this user quickly becomes defensive, then aggressive, and begins to hurl insults. You can see his true nature below - in the comment that you actually upvoted.
I'm actually surprised to see that you endorsed that.
Fair enough. Although I'm not one to throw insults etc, I'm also not one to punish anyone if I feel insulted / offended. But I'll remove my vote seeing that it seems that your disputes are running deeper than what I'm seeing on the surface.