If someone asks a simple question that is closed for being too basic, there doesn't seem to be any way to help the poster, which would seem to disillusion new posters about using the site. (I personally think the question is fine and specific enough, and voted to re-open, but that's not the point here. I don't think I can make the question more acceptable by editing it, or I'd do that.)
I was told that it would not be acceptable to put a link in the comments redirecting the asker to chat, and answer the question there. Why would it be harmful to the site to say, "This may not be a good question for the site, but I'm happy to help you in chat"?
If the question can't be improved, there's no point in using closure / lack of an answer to incentive the asker to improve the question, so what benefit does the site gain by prohibiting people from answering "bad" questions in less official ways (such as chat)?