1. Just noticed that GS crashes if I try to launch WA with invalid path to WA.exe specified :|
It could say something like "WA.exe not found, the path is a lie" instead of crashing, eh?
2. Clicking on the Close button (the X in the up-right corner of snooper's window)
after GS connects to a server (when login window disappears and the main window appears) but
before channels list & stuff could appear results in the main window staying empty until closed manually. Not that it's a big problem, but still. BTW, clicking at the "Filter..." thing in this condition would make GS crash (yet again).

Also, for anyone experiencing GS crashes upon disconnection: I got rid of them by disabling "Load TUS users" & "Load games" options in Network settings. Do anyone else want to try this?