Yea not having enough resources is even difficult on solo mode. I've literally spent hours trying to find iron, the best I could get was from destroying a plane wreckage. The option to show all available crafting recipes just cheapens the experience. It make sense to have that setting only decided by the server admin thought, I'm not sure how this works on multiplayer since I play offline. I suggested they turn those mine able stone rocks into mine able ore rocks that respawn. Maybe they can add the option to make them respawnable through the server admin settings. The only foreseeable problem I can see, is if an ore rock is spawned on top of someones house. So obviously they would have to make them respawnable in caves and make the caves a restricted build zone so that they can't be blocked by other players. Also I would suggest to procedural generate those crystal lights at the entrance of every cave so that they are easier to spot. I appreciate the challenge thought, just not to this extent...