Salt has always been the most problematic world resource. By a landslide.
I don't think anyone else has any issues with the other ones and I personally think every other world resource is spot on fine.
But salt? Come on man let's not fuck around with salt again. The world in which salt was added (and the world after if I recall) where I had to have alts logged at salt basins and monitor the times they would become harvestable was horrendous.
I do like some of the suggestions, like having it so salt basins appear randomly, get harvested, then disappear and show up elsewhere, that might be cool but at the same time maybe we should just rethink salt altogether. When it's good it's worth more than gold and it's overly beneficial to those who have the means to mass harvest it.
I know for a fact that if salt becomes good again, the WR alt deterrent that is in place will not be enough to stop people who want salt.