Display banner on MUC login?

Is there a way to have a MOTD-like banner be sent to people who enter a MUC? I’'d like to have a banner display global information about the use of MUCs in our installation.

Like, ferrinstance, “Caution: Users in chat rooms may be using nicknames which do not accurately reflect their identity.”



You could create a bot that does that. That’‘s how it’'s handled on IRC.