In reply to:

A few of us (including some of the most guilty – moi?), agreed a while ago that we wouldn't go around correcting each other’s errors. There were two reasons (a) Too many of us type this stuff rather rapidly, either early in the morning or late at night to be able to guarantee no typos or spelling errors.

Here, hair! I have been profoundly grateful that my typos (many CP-induced) have generally been overlooked - a gracious courtesy. It seems the most flak I ever got over a typo was for one I quoted, not one I made! Ænigma is way too idiosyncratic to be of any real use, so I have to rely on my lousy self-discipline to force me to slow down enough to read my posts before sending, and I hate depriving you all of my wisdom for any longer than is absolutely necessary.