Items that are aerospace-oriented (rocketry, R/C, control-line, etc) are acceptable for listing in this area. It is strongly encouraged that pictures be included when posting items for sale.
This is a change over the previous policy.
Effective today, the software will require that all threads have a prefix of "[For Sale]" or "[Wanted]" to reflect which category the listing is in.
After you've sold your items, please remember to go back and edit the thread to indicate the items are Sold. To do this, go to your initial post and click the "Edit Post" link. Then, under the editor box that pops up, click "Go Advanced" to get to the prefix options. Change your prefix to "Sold", save your changes, and you're done.
Regarding comments about sellers, If you are not involved in a transaction with the seller or do not have current experience (last 6 months) with that seller, stay out of the conversation. Violation of this will result in infractions being issued.