I'd like to add the following to the What kind of questions should I not ask here? section of the FAQ:
If your question is in the form "Do you ______?", it will tend towards discussion and personal opinion, which doesn't fit the site well. Try to rephrase your question in a way which will encourage objective, comprehensive answers.
Of course, "How do you..." is a different story, since it generally means "How can I...", and those questions are usually just right.
Maybe there could be an example: "Do you use sharpening technique X?" could be "What are the pros and cons of sharpening technique X?"
Exact wording open to change, of course. There could be something about how "Do you know..." probably is the start of a perfectly fine question, but could be reworded, since a literal answer ("Yes I do!") isn't very useful. :)
Full disclosure: I Am Not Perfect. :)