I'm trying to think but IIRC without the self-message script you don't see your nick at all, the buffer will only reopen the other user query as msgs to you and you won't see your nick.

Echo-message was made to fix that showing your nick, times and everything as well but for some reason it shows in two separate tabs, one with the user and one with your nick, I saw it before I just can't remember on which client.