With all due respect.
I simply don't understand this animosity towards black-listing. There are literally thousands of old threads here at Webmaster World for reference.
Whilst, for white-listing there is next to nothing. A few basic guidelines for users to reference.
And yet while yourself and others have had whitelisting in place for some while there was even a reply to my inquiry concerning quotes in this thread [webmasterworld.com] which would almost seem 2nd nature for somebody utilizing whitelisting and being aware of various browsers and the solutions to allow same browsers.
Whether white or black, they both remain effective.