Reread everything and, as you suggested, still read it the same way as no explanation was received to the contrary.
"Laird recently received a warning because in my judgement (and that's my job to make this judgement) he went too far in the impolite and challenging way he addressed George. My warning was to let him know I wanted him to stop right there with that type of behavior. George is the site owner and, as such, he is a moderator of all the forums."
You are correct that on this forum you are the moderator and can give warnings as you see fit. This just means some may "wimp" out and choose to stay away from this forum. Sort of negates the conflict resolution purpose of these forums though doesn't it?
George is the host and can ask any of us to leave whenever he wishes.
"Note Well: I don't plan on defending myself against any arbitrary criticism or accusation that may randomly be made up by you, Rick, or anyone else. Please understand, I am not trying to win your approval or anyone else's on this forum. I am simply trying to do my best to moderate this forum and to do my job as forum arbitrator. "
You are correct that there is no need to seek anyone's approaval (guess that would go for everyone then?).
As for not responding to being questioned that is always kind of hard when you choose to post on an open forum don't you think?
And my comments were not arbitrary but specifc and referred directly to words posted by yourself. You will, of course, respond however you wish.
And admitting a problem is the first step to healing.

(This is a joke folks!)