Is there a way to completely delete chat messages (including history)?
The Purge History option leaves a "last version before deletion", and once a message is deleted it can't be edited to remove this information.
I've believe I've seen messages completely eradicated with some trickery where messages are moved to another room (with x messages moved to/from someroom messages) but the actual messages themselves somehow don't end up in the other room.
Anyone know how this is done?