So this "pillaring" business.. I've never really been on a multiplayer server, but I've generally constructed 4–5-cobble-high cairns to serve as landmarks when exploring my own worlds. Do they fall contrarywise to this "Rule #8" or what?
Usually we mean more like pillaring to get to slime islands and stuff then leaving them in the sky. Small landmarkers would be fine, but with journeymap you can just set a waypoint there and only you can see it.
