Regarding this from the blog:
Furthermore, this page is designed to be shared and reusable. Free to share the How to Ask link with any question asker in need of advice on how to improve their question.
I assume this can be deployed to every site fairly easily, so that would be my first choice, but if that's not possible for some reason, could you add the option to hide the proceed link based on some parameter?
That would be useful to link to it from another SE site, not confusing the user when he clicks proceed and he's redirected to SO's ask-a-question-page.