Prompted by this question:
The following questions, posted by a moderator, seems to have gotten a relatively warm reception.
There may be a difference, here, in that the latter questions are very quant-specific, whereas the new question concerns general knowledge, but I am unsure.
However, I fear that allowing too many of these types of questions detracts from the site. Plus these questions may be welcome on money.SE, so there may be no need to answer them here.
This previous meta question may also be relevant here: