George, George, George -- surely "I regret to inform you that CA left this forum some time to set up a rival forum with similar aims, but after a recent return and a series of extremely non-constructive posts, it was deemed necessary to ban him. That aside, his recipes are still thought by many to be well worth trying".
Much more diplomatic, don't you think, and also (dare I say it ?) rather more accurate ? Much as I personally loath and detest the man as a bullying domineering braggart, that should not (and does not) prevent me from trying to summarise his past contributions from an unbiased, neutral and balanced perspective.
** Phil.