I frankly think that one of the strengths of the original non-professional close reason was that it did (or could) apply to the poster, and not just the post.
To be totally honest, some people are simply well beyond help, and many of them come here to spew their garbage questions at us.
A lot of people, while not spewing useless garbage onto the front page, simply can't be helped in a Q&A format because they don't know enough, or aren't approaching their problem from a professional mindset, etc., and these questions turn into utter trainwrecks with massive comment threads and edits upon edits to ask more follow up questions or radically alter the question and are really only good for causing frustration on everyone's part.
In these cases, which constitute a significant number of closed and deleted questions, the problem is the person asking the question, as much as anything else.
So, while I know it's not going to happen that we get back a close reason that can be applied to the poster ("your question is fine, but we can't help you), that's my two cents. This reason could be improved by allowing for an interpretation where the problem is the person asking.
In my opinion, the absence of a close reason that acknowledges the reality that sometimes the problem is the poster himself causes more problems than it solves, because those questions still get downvoted feverishly and closed with great vigor, but they just get closed with ill-fitting close reasons that confuse the OP as to why.