>I can't tell whether this remark is codespeak for 'bugger off' or a piece of advice given in good spirit.<
That's the trouble with the internet, sometimes the written word is open to interpretation, and others may infer things from what you've written.
So; I've always found Peter Herring to be a knowledgeable man who will offer his gleanings to others. He's also very forthright, and not afraid to let you know his opinion. I have a lot of respect for him (or rather, his online prescence, as I've never met him in person).
I don't like writing my opinion of folks on the 'net, but felt I'd best try and clarify my post.
(And he does seem to like a good 'heated debate!') :-D