You have to be logged in to post. Something brought to our attention by a couple of users is that some have to log in twice for some reason. We're working on that. When you post, look up at the top of your screen and if you're not logged on you will not see your username. When you are logged in you'll see on the bottom right hand of the menu something like this:
*Log Out [Rennabelle]
If you don't see that, you're not logged in and will need to log in again.
Sorry for the inconvenience, we'll get it fixed as fast as we can.