It's not the users task to decide nor recognize if login.launchpad.net is part of launchpad software or not - the domain tells enough.
If, as you say, referer checks used only for POST request wouldn't do any harm, then these comments prove the opposite.
It's not the users task to decide nor recognize if login.launchpad.net is part of launchpad software or not - the domain tells enough.
If, as you say, referer checks used only for POST request wouldn't do any harm, then these comments prove the opposite.