Man, I'm so tired of seeing post titles "I have a question..." in the For Sale section! Anywhere really. However... My suggestion only applies to the For Sale section. If you decide for mandatory descriptive titles everywhere else, well, that's just a bonus.
So, please implement some type of Mandatory Title / Description AND PHOTOS in For Sale Section.
In this day and age of cheap digital cameras and cell phones most everyone has one of the other. Photos are not a problem.