An answer to this question would be useful to lots of people, not just the OP. This question is a credit to the site, and one we should be proud of (and proud to have people who can answer it on here – indeed, proud to have the person who wrote the book which the answers is going to tell the OP to read on here)!
Unfortunately, the question was initially poorly posed. It therefore received a score of -7, and is currently
sitting at -4 at 0. If it had been well-posed then I believe it would have received a respectable positive score, perhaps breaking the $10$ barrier. (Of course, this is just opinion.)
Anyway, my point is this: Nice question, but a hideous score. The score reflected something which is not relevant to the question as it is presented now. Moreover, this question will be useful to future visitors, but with such a low score it will be impossible to find (would you think the thread you are searching for had a negative score?!). We therefore have a problem.
Proposed solution: Get the OP to re-post the question. This re-sets the score at $0$, and people will be voting on the question not on the way it was posed.
What think you?