This question is prompted by a discussion following a question on money.SE. The standard FAQ of money.SE is similar (if not identical) to the FAQs on other stackexchange sites, but what would really help is another FAQ with answers to the questions that do indeed truly get asked frequently on money.SE and which could well be closed promptly and the OPs directed to the repository of stock answers to common questions.
Over on math.SE, there is a List of Generalizations of Common Questions that is maintained on the meta.math.SE site. Perhaps the moderators can consider setting up something similar on money.SE or meta.money.SE too? I will nominate @littleadv's recent answer as something that can go on meta.money.SE's List of Answers to Commonly Asked Questions.