I'm not sure if shift+click would be a good combo given that that interferes with built in browser functionality (it opens in new window, in Firefox at least), same with ctrl+click which opens in new tab, alt+click seems free though, so if it'd be anything it'd be that.
Of course you wouldn't use this and you would actually just read new posts... right?
Of course you wouldn't use this and you would actually just read new posts... right?