@yuttadhammo comments that this question is not a good fit for SE. I can't disagree with that and so on the one hand, one approach is simply to decline to answer, so as not to inadvertently endorse the question as being a good fit. And of course there's always the more substantial responses of voting down or even voting to close.
However, on the other hand, my tendency is always to try to help out as much as I can (see my very limited answer to the above).
Is there a generally accepted best SE practice in these situations? Is answering a bad-fit-question considered unhelpful for SE?