This is (just barely) too long to fit in a tweet. Tim O’Reilly says:

The biotorrent project demonstrates that piracy is not the point (or best use) of bitTorrrent.

If I take a sword and use it as a can opener, then killing people is not the point of a sword? That’s utterly absurd. One unique use of a thing, never imagined by the thing’s inventor, does not outweigh the multitude of other uses. Either the inventor’s intent or the common usage might determine the point of a thing, but a single unique use sheds no light on either and thus proves nothing.