One of the most common bug reports for NetNewsWire is that, when a drawer opens, it can be hidden if the main window is already almost as wide as the screen.
Some apps—OmniWeb, for example—deal with this nicely by shrinking the main window. Other apps—Mail, for example—don’t do anything about this issue.
I’m utterly pleased to report that NetNewsWire, in the next release, will work more like OmniWeb than Mail. It will shrink the window when needed to make room for the drawer.
One might argue that Cocoa should do this automatically, and I might agree.