Well done tig, you got him there!
Then again, duthill has shown himself to be really ignorant within this topic. Seriously, he couldn't be more wrong with what he's been saying here. But hey, he believes he's right (no matter how wrong he really is) and that he can be as obnoxious (or, to use a word from your wiki copy'n'paste tig, inflammatory) as he likes as a result. So maybe scotsites has been caught out in some trollish behaviour (and deserves to be reported and dealt with appropriately), but that doesn't excuse duthill's attitude - something that, when you look through his posting history, seems to be an reoccurring theme!