> I'm not sure how we could explain to avoid it - where would the explanation go? You could put the instructions on pages that many people visit regularly, tru

> I'm not sure how we could explain to avoid it - where would the explanation go? You could put the instructions on pages that many people visit regularly, true security through obscurity. For example, put the instructions in abbreviated form in a box in the footer of your front page (or in the footer of every page).