User blog comment:Mathmagician/Why Dart Traps?/@comment-1387644-20120107053535/@comment-67.114.138.53-20120109215101

Active stones are cool and all, but I would use them to annoy actual people by having them follow me across a bridge, having them drop as I hit the first switch, then hitting the second and remaking it. My lava pits are narrow enough I can just jump over. A short cieling and faulty AI reduces this option for enemies.