The main people who will worry about this are the ones who dont know how to make money without buying/selling "rare" or "valuable" items. Go cut a few yew logs, make some longs, make a few nats, alch, gg cash. People who actually use a skill or multiple to make their money, wont be affected, people who think merchanting is a get rich quick scheme, will get screwed if they suck at it, go train some skills and make some money.