We've clarified one of the unwritten rules a bit better right over here.
Most of these you're familiar with. Topic left tag, being able to stop someone from leaving. etc etc.
The new one is that you can no longer stop someone from leaving on your own entry post into a thread.
So if Ninja Bob is in a thread with Ninja Bruce, and Ninja Bob posts leaving, Ninja Bacon can't post entering the thread and stopping Bob from leaving. Bruce has to.
Sorry Bacon.
Most of these you're familiar with. Topic left tag, being able to stop someone from leaving. etc etc.
The new one is that you can no longer stop someone from leaving on your own entry post into a thread.
So if Ninja Bob is in a thread with Ninja Bruce, and Ninja Bob posts leaving, Ninja Bacon can't post entering the thread and stopping Bob from leaving. Bruce has to.
Sorry Bacon.