Prevent Users Setting Custom Status Messages by User Policy
Users who have chat disabled have discovered they can "chat" with / harass others by @mentioning them in their status messages. The @mention delivers a notification to the mentioned user, enabling them to read the full status on the (disabled) chat page. They can then respond in their own status message.
These users (students) have no reason to be able to set a status message, but there appears to be no way to prevent it.
I would like an admin policy to prevent the setting of custom status messages.