Why post photos and when are they neccesary?

You can post photos if you wnat to, but they're not a requirement, and for most discussions they don't really add anything. Some people like to add them because they enjoy photography, and because you get some credit for them. But I noticed some people say that they tried posting pictures, and they didn't make as much money as posting discussions or commenting on other people's discussions, so they quit. It's completely up to you if you want to do it. I think you may have to have a certain number of posts before you can start adding photos. Somebody may come along to let you know more about that. If you do post phots, make sure they're your own.