Still more food for thought.
The main pragmatic reason I'm so anti-IQ (I gave the logical ones above) is that it detracts from research on intelligence that could (I think, will) bear a lot more fruit.
- Job specific skills assessments.
- Proper ways to train for skills acquisition ("Deliberate Practice", etc.)
- Mind Set (particularly satisficing vs. Mental Toughness )
I was simultaneously trying to be convincing while being open to being convinced. Sometimes, I think that people are more willing to make things clear to me that they actually are. Sorry.