Focus on serving those asking questions will grow/improve the community
The community may benefit more overall by avoiding this close option. We do not like poor questions because they go unanswered but I believe that is the function of community editing and a question can become useful weather an author takes the initiative or not. If someone (like myself) particularly enjoys editing questions to make them more useful before providing them with great tutorial like answers, doing so makes Google more effective for the future because our answers would show up every time. Eventually it will be more and more obvious that we are an undeniably useful community and so we will get more questions allowing more experts to participate and so on. Closing the question is not friendly and with that kind of interaction we are never going to see this thing be as great as it could be, because people like to be treated nice.
They don't know how, thats why they're asking.
I also think we should recognize that graphic design is becoming more accessible, so many people are getting involved but don't know where to start. If they knew what to try they would have probably achieved it. But, not having a clue isn't a bad thing, because this is a place for people who have questions to meet people who like giving answers. I would be ok with an action that required "someone" to improve the question, thus improving the front page. But the author might not be able to prove attempt, and his question shouldn't have to die if someone happens to have a good answer for it anyways.
When we close a question it can't be fixed and no one benefits, but if the question is left open, we can encourage others to improve the poor questions and the result is more desirable and leads to a larger more effective community.