This is an angle on "How much is it worth" threads that I had not thought of.
Be very cautious of any non-For Sale thread posts where someone says something like: "I'm thinking of selling my XXXX . How much do you think I can get for it?" This can often be bait designed to get people to quickly respond via email or PM hoping to be the first to scoop an item before it officially goes up for sale. A scammer can sell the same item many times over to different people this way, without any public posting to tip everyone off.
It is from Head-fi, a much larger site with dedicated sales threads of various types (and obviously much larger admin resources). So this problem may never visit us. Read that: we are not worth the trouble/effort.

Check the stickies out for a different take on sales forums. I found the "Commercial sales not allowed" sticky to be very focused. It narrows the specific forum to friendly sales among forum members and forbids flippers. Not for us, but interesting.

http://www.head-fi.org/forums/f10/

Clark