Man, I just saw this thread today for the first time. Wish I'd been following it before Mr. Wallcot deleted his posts. I mean, to elicit such hostility from a bunch of people who are always so cool and universally helpful... that takes some talent.
There's a term for what he's experiencing: cognitive dissonance. He paid good money for what he thought was the best thing you can get, so his ego just won't allow him to entertain the idea that his oven may be anything less than the best (even though it's obviously a horribly-designed oven). Some people learn from their mistakes; others freak out and tell cool, rational people that they're not getting any.