Possibly because the system as it exists now might be perceived as near-optimal for the average user: some people fund creative works that others enjoy for free. Thus, the discussion is consistently trainwrecked into one of semantics (sometimes, with a bit of a victim mentality thrown in) because some people would like the system to continue as is. Real solutions to this problem are very hard, and I can't think of one in which someone doesn't get screwed.

Then again, it is quite refreshing to see so many people defend the purity of the English language.