Once upon a time, another forum I used to visit set up something like this. Only admins/mods were able to post in the forum. All that was posted was a brief synopsis of why the user was banned. It helped answer the questions about disappearances I keep seeing surface here.
If only the mods/admin could post in the thread it would simply lead to threads being started in other areas by those wanting to discuss the issue.
Like this thread for example. (No offense, Cam)
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