I can understand that sometimes questions are closed as being too opinionated, too broad, or unclear, but my question was closed as being off-topic. I have read the On-Topic Help Center page for Code Review, but more detail would be useful.

I see there are a number of sub-reasons for being off-topic:

• broken code
• code not yet written
• the question does not include the code to be reviewed
• the code is not real code (it is example, pseudo, or hypothetical code)
• the code is not owned or maintained by me (it is someone else's code)

When questions are closed with these reasons, what does it mean, and what can I do?

^{Note: This is the beginning of a set of answers that will help clarify the close reasons used on the site, and will be linked to from the close reasons themselves. If you want to start answering one of these subsections, then add an answer and edit this question so that the bullet-item points to your answer... When this is more complete it will be linked in as part of the faq}