Oh Contraire!
It would be exceedingly handy to play with the input... such as detecting spelling errors as I type, advanced nick completion that doesn't require dialogs or going back over what I typed as it comes up with suggestions, and even keep track of my WPM! I have no idea how fast I type in practice, and I never will until On KeyUp/Down works in channel windows.
- Raccoon
PS. There is no On EDITBOX.
PSS. don't argue with me about in practice... its unbending definition means "what I type in a channel window".