I understand the frustration. I really, really do. But it's not what votes to close are for and we don't need such an option.
There is already a tool designed for "you didn't RTFM": the downvote arrow. When you hover over the downvote arrow, its tooltip says:
This question does not show any research effort; it is unclear or not useful
That encompasses failing to read the fine manual.
Voting to close is for questions that are off-topic or unanswerable in a finite amount of time. A question that describes a problem that boils down to "I didn't read/find the rule" is neither off topic, nor unanswerable — it's just bad. Close votes are for questions that don't belong or that do belong but need some TLC before being answered, but for questions that are just bad we have downvotes.
But why? Why do we have to put up with crap questions? Because the gamification of the site works a certain way, and bad questions aren't properly gamification-motivated by closing. Downvotes hurt materially — they ding the asker's reputation on an ongoing basis. A highly downvoted question, although it may be topical, gets buried and hidden from the front page. The punishment continues when other people find it, because it's still open and still begging for punishment. Downvotes send the message that the question is bad, and unappreciated by the community. It's still possible to answer a bad question with a stellar answer though, and we do want that to happen. (We even have a hard-to-get badge for pulling off that kind of reversal.) We make the internet better that way — our site's founding principle.
Closing, on the other hand, is a site management feature. It's designed to keep the site tidy and on topic, and to prevent our expert answerers from getting tied up in open-ended discussions, and to prevent answers on questions for which we aren't experts and won't generate quality answers. Closing is primarily an answer management feature. It doesn't inflict a material "ow" on the asker that might gamification-motivate them to stop (although it can be personally frustrating). Close votes send the message that the question might be fine, just maybe not here, or maybe not without some work done to fix it up.
So that's why we put up with crap questions: because we obliterate them with downvotes so that we don't get more crap questions. Closing questions doesn't discourage future bad questions, it just deals with this one right now. Different tools for different aims.