Interesting that many of the people who will tell you about bolt snaps facing the wrong way,quick releases etc etc cannot tell you of real first hand examples of emegencies or problems.
The point of best practices in whatever school of thought you have in scuba diving is that you can learn from others mistakes, and everyone doesn't have to have an emergency or problem in order to figure out that a certain practice or gear config is wrong.
If you attach a double-ender onto an side-handled reel the wrong way, it will eventually unlatch itself, and you will loose it. The person who told me this the first time never lost a reel this way, but it logically makes sense, and can be demonstrated on dry land.
I give a lot of credit to people who have learned things the hard way, but some people have experienced the first hand emergencies and problems, and taken the wrong lesson away from them. It's like the people who get a bunch of stings and cuts from touching and running into reefs, and advocate the use of reef gloves, and jumpsuits instead of actually controlling themselves in the water, and not running into things in the first place. First hand experience is great, but you still need to apply the same common sense to any advice you get.
Tom
BTW, Karst Diver, I know you weren't advocating doing stupid stuff just because people told you to, I was just taking your idea and running with it.