Programmers could benefit from a few more regular visitors who close questions on the front page and the Unanswered page that are clearly off-topic.
"Clearly off-topic" means:
We don't do code troubleshooting here, so if your question is about how to fix your broken code or how to use your programming tools, ask it on Stack Overflow, making sure that you provide a minimal, complete, and verifiable example.
We don't answer survey questions, make lists of things, or engage in extended discussion here. We don't predict the future, find things on the Internet, provide customer support, or make product recommendations of any kind here. We don't know what project you should do next, what class you should take next, or what job you should apply for. We don't give legal advice.
At the moment, many such questions get three or four close votes, and then languish on the Unanswered page, sometimes for several days. Ideally, the goal would be to get questions like "Best Library" and "Coding Help" closed within the hour.
It just takes a few minutes a day. Usually, all you have to do is scan the Unanswered page for downvoted questions, and add your close vote where you agree. Alternately, review questions flagged as off-topic in the close queue directly.
As an added benefit, you would be inaugurated into the White Board Curmudgeon Club, where we hang out, talk about tequila, wax philosophic about a diverse array of subjects, and watch in amusement while new users can't figure out what the site is all about.