When someone votes to close an issue as...
Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
subcategory of off-topic
They see that wonderful list of things to remember. However, the OP doesn't. At least, not until the post is closed.
I think having an automatic comment, that says something along the lines of,
Please check that your question follows the Stack Overflow question checklist
Would be beneficial to the OP, and give them a (potential) chance to edit their question before it's closed. I don't know what the reopen rates are, but I believe they're pretty low.
I do think that a nicely formatted FAQ page would have a better effect than the list there. Bright colors, screenshots, arrows, etc.