It's a shame this hasn't been posted anywhere before the deadline for Opposition Proceedings had been reached (March 7th 2013). Whether it would have been possible to stop this at all is another matter, of course.
What about this...? A simple tool might be useful as a first line of defense against silly filings. First, the tool could monitor trademark filings. Second, it could compare against common words, perhaps from a dictionary. Third, it could score filings using a 'frivolity' score. Fourth, perhaps it could expose its a moderation queue via a mailing list or web interface. Fifth, maybe it could be gamified?
Maybe you should use Google Search result count. If a phrase doesn't appear frequently online, its ok to trademark. If there are 10 million results, it should be flagged.