The Teachers' Lounge is a "moderated private room", in which regular moderators like me have limited powers:

They won't be able to


  • purge the history of messages

I can see that the option to go to the history of a chat message is hidden from the UI, but I still have access to that page, it had the familiar orange 'Purge history' button and after clicking it, the history seems to be gone:

Message history

(no history available)

  • Hope that message wasn't important! :)
    – Spevacus
    Mar 28 at 15:46
  • 5
    The message is still there, it just doesn't have a history anymore.
    – Glorfindel Mod
    Mar 28 at 15:47
  • Oh, I see. My experience seeing chat message purges was limited to an instance where the message was deleted and-also had its history purged.
    – Spevacus
    Mar 28 at 15:48
  • 1
    Yes, that is the most common use case.
    – Glorfindel Mod
    Mar 28 at 15:48

1 Answer 1


Thanks for the report!

This was fixed a few days ago - going forward, only CMs and moderators who were assigned the full moderation privileges in the TL will be able to purge message history.

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