When an event is full and registration closes, someone can attempt to register, and they receive the same confirmation page stating they have successfully registered, with a small notation below that states that registration is closed. This is confusing to registrants, especially if they don't read to the bottom and see the closed part. They should get a completely different message when registration is closed so that there is no confusion. I have had people show up at a training event thinking that they were registered and they were not, for this exact reason. We were at capacity and then had extra show up, which causes seating and food shortage issues. :-(