Replace boiler-plate password form shown in protected posts with a form containing hints taken from 'password_hint' custom field.
Traditionally all password protected posts contain a boiler-plate password form without any hints. Without any capability to change the string, one must provide the hint in another post, which is a bit clumsy. Not to mention, people viewing the single protected post only will be unable to see the hint at all. With this plugin protected posts are more usable.
The password hint is taken from a certain custom field within the protected post, with key name ‘password_hint’. If this key is present, the value of key is immediately taken as the password hint. Without the key, the standard password form is shown again.