Yes, I will agree that the transfer and application of knowledge indeed shows intelligence. That's not to the say the person him/herself is not intelligent if they do not perform in a certain area, such as posting worthwhile threads on arachnoboards.When we speak of IQ, in most cases we mean the cognitive IQ. IQ is divided into three "divisions": cognitive IQ, social IQ en emotional IQ. At least this division is used in Europe, don't know about the states.
The fact that you are able to reproduce litterally what you have learned is not necessarily intelligent, the fact that you can apply what you have learned in different situations, shows a level of intelligence.