1. The lifesaver for everyone who's convinced they have a black thumb: houseplant keepers, homeowners with lawns and/or flower beds to keep to community standards, weekend vegetable growers and the like. No soil testing, smelly compost heap or complicated formulas to follow, merely apply a little powdered magic and voila! Success! Do not use near watersheds. May burn plants if overused.
  2. Corporate America's hugely successful attempt at getting the home gardening market hooked on chemical fertilizer, instead of using sustainable, judicious use of nitrogen, phosphorous, and potassium found in such things as liquid fish emulsion, skim milk, dried blood, and well-rotted rabbit manure (from your own rabbits, of course).
Take your choice.