I have my own reasons for this suggestion that likely doesn't apply to anyone here in particular. I play in some game rooms, where the topic being shown clearly and in full (which the title bar to mirc doesn't quite do, even if the text is scrolling) for people participating would be a huge thing of goodness.

But, yes, this might also make the topics in other channels where other people are 'what I missed it' due to chat scroll actually realize there's a topic.

And, like my suggestion said, completely optional. I don't want to force it on everyone. I just would like it for me and people I know who would appreciate it.