I tend to read "categorical imperative" in the strongest, Kantian sense, an imperative statement that is a priori valid irrespective of context or reasoning - i.e. murder is just wrong and you just shouldn't do it period.
If "murder"=="the wrong kind of killing" then "the wrong kind of killing is just wrong and you just shouldn't do it period" is a tautology. It would seem you can get cheap categorical imperatives by jumping to tautologies, but they're mostly useless since you still have to establish whether it's m...
Isn't yelling "fire!" in a crowded theater a kind of langford basilisk?
Hear, hear! Arguably, resources like Wikipedia, the LW sequences, and SEP (heck even Google and the internet in general) are steps in that general direction.