And? That still leaves a website open to doing that sort of thing on a click. (I can see it now: "like <website X> on Facebook today!" or somesuch copied to you

And? That still leaves a website open to doing that sort of thing on a click. (I can see it now: "like <website X> on Facebook today!" or somesuch copied to your clipboard every time you visit a site) User-initiated != user-approved, at least not unless the user is specifically asked. (Like by, say, prompting allow/allowalways / deny / denyalways)