Cricinfo has a piece on actions that made the lawmakers think about changes and one of them is a bowler running a batsman out in his delivery stride. They judge it to be against the spirit of the game, and I know the laws have been changed to make this virtually impossible these days.
Why is this against the spirit, if anything, it's an appropriate punishment for a batsman who's trying to cheat?
In more & more tight situations when the batsmen are trying to pinch a run or a bye the non-striker's almost a couple metres outside his crease when the bowler lets go of the ball, making the bye infinitely easier than it used to be. Run the buggers out.