How bad must desktop Linux in general be, if people are so busy rejoicing about a volume icon that works, that they accept poor security?
That said, no it should not excuse poor security.
GNOME and Unity also have that, probably KDE too.
Does Linux have a standard API for surfacing interactive icons and menus in the menu bar? An ICCCM extension, perhaps -- set some properties on the root window and cross you fingers? Or would you have to do it differently for every different Linux desktop environment or window manager that supported such a feature?
[1] https://developer.apple.com/library/mac/documentation/Cocoa/...
Exactly. Unity has libappindicator, KDE has Plasma, GNOME Shell also has its own plugin API and there's still the old tray API in Gtk+ and Qt.