Sometimes I think there should be a separate Countdown series for young, dictionary-swallowing blokes. This could run for, say, two months every year; let them beat each other every day with their fancy eights and nines every round.
Then, for the remaining ten months of the year, the programme could revert to having "normal" contestants (basically anyone who doesn't hang out on the Countdown forum that was linked to a few posts ago), who just play the game for fun and don't spontaneously combust if they fail to spot an "obvious" nine! It would make the show a lot more enjoyable for the casual viewer I think (at least for ten months of the year).