No, it is not an answer. It is as much of an answer as "Don't play CK2, problem solved" to any gameplay-related question.
It is unfortunate you still do not understand why you are wrong.
The answer that was given is, to use a saying, to treat the disease, not the symptom. If you do not understand why this is not only an answer, but also helpful, then please think about it some more. Besides, you have not answered the OP's question, nor even attempted to do so.
Read the OP's post again:
"I would really like some indicator of when those silly merchants will be wanting their gold back, and if I should spend money on my economy or be saving."
He expressed doubt as to how he should handle his finances. We are giving him some advice. So why are you disturbed by this?