I did some playing with the settings this evening and figured out what the problem was… no one but Administrators were able to originate new messages! Any logged in subscriber could “reply” to a posted message, but no one was able to originate a new message.
This is now fixed. After logging in, look at the top of your screen and note the + New symbol. This is the button that starts a new message. There are all sorts of editing tools available to you in there to create some very fancy messages. Have fun, you can’t break it. Please also note that you may not be able to see your message immediately after posting it because the system is going to require anyone not logged in with a valid ham radio callsign to have an administrator to approve the message before it goes live.
Hope this helps!