How do I make Skype use the entire available screen width for my chats?
It seems silly to waste all that screen real estate.
You can expand the Skype screen to full width, but the text area maxes-out and does not use it. In lengthy chats it would be useful to be able to see more of the conversation. There is no obvious reason for a hard text width.
As noted in this bug report, you can change the width of the text view by dragging the edges of the input box:
This way you can make the text view much wider: