IN Taiwan, people eat fruits with little bit of salt, only tiny bit, it actually makes the sweet less fruit sweeter... don't ask, try it with a tomato, or starfruit, just tiny bit, it actually make tomato/starfruit sweeter... now watermelon... IS a sweet fruit to begin with... I have NO IDEA why salt there, unless it's using the bad watermelons, which are tasteless or bitter... eww...