The game and server are both far too late in their lives to be starting taking things away from people. Blanket nerfing a bunch of IDs from 5,000 to 4,300 or 3,600 is going to do harm, not good. We need to be keeping the game as accessible as possible, not restricting it too much.
It's a better idea to introduce something extra, such as a small buff for shipping factions who don't mine. What exactly this could be, I couldn't say. I've heard the ideas of larger trade ships or ID locked commodities being floated, maybe something like that.