Sometimes notification messages appear, and it isn't clear whether they are from vscode or an extension, and if so, which one. Right now I sometimes see "The internet connection appears to be offline" and don't know which extension is responsible. It would be useful to be able to easily trace the message to an extension, maybe with a tooltip on the message that shows the originating extension's name. It looks like a notification UX overhaul is on the way, #1135.