If the ability to hide the titlebar's of channels windows was an option, a lot more viewing space could be dedicated to the actual channnel's text. This would benefit users who frequent several different channels like I do.

If the titlebars would auto-hide or something similar, then more lines could be viewed without having to resize the window. I know the titlebars only take up about a line and a half a piece, but if you have four channel windows open on both halves of the screen, you could read approximately 12 more lines total - 6 on the left and 6 on the right.