I'd like to see +1 and +2s gone because all they do is clog up my inventory and no one wants to pay more than NQ for them. They're only willing to pay more for +3. As a result I never put +2s up for sale and rarely try to sell +1s.

Also things like limonite, iron sand etc. serve their purpose. Take gold for example. Gold sand is way easier to dig up than gold ore and is available at a lower rank. I'm all for making gold, iron and silver rarer but I don't think removing the sand is the right way.