It happens often enough that the person is given a name: Mr. One.
And you never know when Mr. One will strike. If it just happened during a bunch of regulars' postings, well, that's one thing. But it would be a shame if a really good new writer were scared off during one of the "Mr. One attacks". You'd never get to see the best of their potential.
I say get rid of the rating system altogether and just give the option to post comments/critique for each episode. A critique is more helpful than a rating.
