As with James Heartfield, you could make your point without being insulting.
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I won't defend insults on principle (although using them in practice is another question), but what brought that on? Neither James nor Chris's posts seemed particularly offensive by the normal standards hereabouts.
-- "Hige sceal þe heardra, heorte þe cenre, mod sceal þe mare, þe ure mægen lytlað."