Hi Dave. I was just about to email you.
The answer was deleted because it was noise. It didn't answer the question, and should have been a comment. The comment thread that was going on in that answer belonged on meta as well.
When I tried deleting it, it kept showing as open on my screen. I didn't realize you were reopening it; I wasn't even aware that was possible. I tried flagging it as Spam to see if that would keep it closed, but I honestly had no idea that would cause a 100 point rep deduction.
I stand by my decision to delete the answer. However, I apologize profusely for the reputation deduction, it was not appropriate, and was a complete mistake on my part.
I'm trying to see if someone on the team can do anything to address this.