Strange question isn't it.

Indeed why is it even in the "Technical" category of questions?

Simple - These are types of questions that often are not asked because the person doing the asking is a tad shy to admit he/she doesn't understand a subject or area when it might seem they should. Also I use this approach to great effect when I ask tradesmen "Why do you need to replace part X?". When faced with this question the answers can be most enlightening and can on some occassions lead to a change of decision (Potential cost saving).

This result is of course only OK if there is not potential negative impact on safety of flight.