You're all getting into some really interesting material here, and I think that it has significance beyond the scope of conlangs. I didn't want it to get lost, or ignored by non-conlangers, here, so I started a new thread for it, called "The value of ambiguous speech". This isn't to say that it wouldn't be great to see more discussion of the application of ambiguity to Ithkuil, but I didn't want you to miss out on the wider thread if your attention was focused here.

Update: ChristianKl pointed out to me that I should put a forward link to the new discussion here (bear with me, I'm a newbie), so I'm going to try to edit one in after the fact.

Click here: http://lesswrong.com/r/discussion/lw/n0o/the_value_of_ambiguous_speech/