I have read about them and they were horrifying. The 163 was designed to land on its skid so it would be exempted from this. I belly land myself often as well, particularly when landing at an airfield with many bad guys. My intent was for a little more added realism.
If you try to land faster than 180 you will crash and die, if you land with too much decent, you will die.
I am looking for the added realism. I belly land often enough myself.