Is there a way to change the status of a user so that his messages must all be approved before appearing?
There is a setting in admin for
approve new topics unless trust level (under Setting / posting)
You could use this setting to make posts by certain trust levels require your approval, then manually reduce and fix that user’s TL accordingly
This could affect other new users though, but if they can graduate through the Trust Levels as normal and are not fixed, it might not make a huge difference
Thanks, I’ll ask the admin to try that out.