As promised, here is the "Q" part of the Less Wrong Video Q&A with Eliezer Yudkowsky.
The Rules
1) One question per comment (to allow voting to carry more information about people's preferences).
2) Try to be as clear and concise as possible. If your question can't be condensed to a few paragraphs, you should probably ask in a separate post. Make sure you have an actual question somewhere in there (you can bold it to make it easier to scan).
3) Eliezer hasn't been subpoenaed. He will simply ignore the questions he doesn't want to answer, even if they somehow received 3^^^3 votes.
4) If you reference certain things that are online in your question, provide a link.
5) This thread will be open to questions and votes for at least 7 days. After that, it is up to Eliezer to decide when the best time to film his answers will be. [Update: Today, November 18, marks the 7th day since this thread was posted. If you haven't already done so, now would be a good time to review the questions and vote for your favorites.]
Suggestions
Don't limit yourself to things that have been mentioned on OB/LW. I expect that this will be the majority of questions, but you shouldn't feel limited to these topics. I've always found that a wide variety of topics makes a Q&A more interesting. If you're uncertain, ask anyway and let the voting sort out the wheat from the chaff.
It's okay to attempt humor (but good luck, it's a tough crowd).
If a discussion breaks out about a question (f.ex. to ask for clarifications) and the original poster decides to modify the question, the top level comment should be updated with the modified question (make it easy to find your question, don't have the latest version buried in a long thread).
Update: Eliezer's video answers to 30 questions from this thread can be found here.
My answer to this depends on what you mean by "professional philosophers who think about". You have to be aware that subfields have selection biases. For example, the percent of philosophers of religion who think God exists is much, much larger than the percent of professional philosophers generally who think God exists. This is because if God does not exist philosophy of religion ceases to be a productive area of research. Conversely, if you have an irrational attachment to the idea that God exists this than you are likely to spend an inordinate amount of time trying to prove one exists. This issue is particularly bad with regard to religion but it is in some sense generalizable to all or most other subfields. Philosophy is also a competitive enterprise and there are various incentives to publishing novel arguments. This means in any given subfield views that are unpopular among philosophers generally will be overrepresented.
So the circle you draw around "professional philosophers who think about [subfield x] questions" needs to be small enough to target experts but large enough that you don't limit your survey to those philosophers who are very likely to hold a view you are surveying in virtue of the area they work in. I think the right circle is something like 'professional philosophers who are equipped to teach an advanced undergraduate course in the subject'.
Edit: The free will question will depend on what you want out of a conception of free will. But the understanding of free will that most lay people have is totally impossible.
Jack:
I think I agree with everything you say in response to my original post.
It seems like you basically agree with me that facts about the opinions of philosophers who work in some area (where this group is suitibly defined to avoid the difficulties you point out) should be important to us if we are trying to figure out what to believe in that area.
Why aren't studies being carried out to find out what these facts are? Do you think most philosophers would not agree that they are important?