Anyone who has spent any length of time browsing the internet knows that it represents a fair cross-section of the human race¹. This, unfortunately, includes people with...poorly expressed ideas. Ideas which are, for lack of a better word, stupid. Ideas which are communicated with poor grammar, or that near-indecipherable mixture of letters and random ASCII characters known as l33t. Wouldn't the internet be a better place² without all that rubbish? Well, StupidFilter thinks so. As their FAQ states, this is not a joke. They are actually attempting to build an open-source filter that, much in the same way you can recognize spam e-mail without actually reading it, parses gross prose style to determine the stupidity of a block of text. That's fantastic.

¹_{Or at least that part of the human race with access to the internet. QED}
²_{Inasmuch as a worldwide network of computers with little physical footprint can be referred to as a "place"}