Aaron2 said:
I guess I've seen too many kung-fu movies to consider this to be ineffective. 
Kung fu movies involve martial artists with years of special training. they can do things that are normally awkward or impossible. Almost as if they learned special techniques (sometimes called "feats") that allow them to do things people normally can't.
I'm trying to focus on just what the rules say.
The rules say that you don't threaten with a ranged weapon, and that polearms can't attack the area next to you.
It's seems that they do not intend you to threaten those areas when wielding those weapons, or they would have mentioned it.
I do have ulterior motives in this respect. I have often argued (with people who don't like D&D) that everything shown in the LOTR movie (at least the combat parts) can be simulated with 6th level characters using the normal D&D rules.
*shrug* The rules weren't written to support an actor simulating a fantasy characters abilities. Legolas is supposed to be over a thousand years old. I highly doubt he's only 6th level.
I don't want Legolas to be required to have any special feats or powers.
Then he doesn't have Point Blank Shot, Rapid Shot, or Precise Shot? Sounds pretty crappy.
If you are saying that he does have those feats, then what is the problem with him having one more feat that allows him to stab guys with arrows effectively?
His actions are just "special effects" of ordinary abilities. For ex: if he fires two arrows at once, that just Rapid Shot. If he fires an arrow that goes through one orc and hits another, again that's just Rapid Shot.
So you do think he's using a feat. Make up your mind.
He stabs an orc with an arrow and fires one at another thats just Interative Attacks. It must be the Hero System gamer in me.
I think it would be a "Melee Arrow" feat that he learned because he's a bad ass. Nothing stops him from picking it up by 6th level. And it doesn't even require him to threaten an area with his bow.
I don't want to enter into another tangent on this, I'm just showing my perspective.
Aaron
It sounds like you are trying to twist the rules to fit the movie characters. It's never going to work fully. D&D is not an attempt to simulate the Lord of the Rings.