What's said, was said. If Jordan chose to see it as a condescending tone then that's how she saw it. She does make a fair point though, Artashes doesn't go around starting posts with "Dear <name>" and (this may be my own mis-reading coming into play) his post provoked the same reaction in myself; I'm neither female, nor Jordan and certainly shouldn't be giving two hoots about how one person addresses another individually.
Let's chalk that one up to the subtleties of a text-based communication medium and move along.
How do the moderators feel they're settling in? Got the hang of trawling through the crap, making decisions, have you found the line yet?