I made some changes to the FAQ to reflect our meta discussions regarding the site scope. This is a work in progress and will most likely change again as we learn more about our site's issues and how to solve them.
Please take a look and give us your feedback.
UPDATE:
After reading Pawel's answer, I was just going to add a section about how to ask if you are asking something that pushes the scientific boundaries of project management, and I realized I was repeating a lot of what I wrote for the advice to beginners section.
I feel like the advice there applies to both questions asked by beginners as well as the theory, cutting edge type questions Pawel and David refer to in other meta threads.
Here is what I started to write in the FAQ, (but didn't save). Maybe we can merge together the tips for beginners with the tips for asking in general?
Experimental Project Management:
PMSE strives to be a resource for both experts as well as enthusiasts. We hope some questions will push the scientific boundaries of project management and improve not just the Internet, but the field of project management itself. Here are some tips and guidelines to ensure these questions are answerable:
Tell us plenty of details about your problem
Explain what you may have already tried.
I think this section might be getting a little long, considering the FAQ covers a lot of other points which may repeat some of these points. (Moderators can only edit the first section in the FAQ, the rest is all boilerplate material that is the same across all sites).
UPDATE #2:
I revised the "Advice to beginners" section to target all askers but still mention that the advice targets beginners as well. I also added the summary Mark wrote to the beginning of the FAQ.