I love creatives/clients/agencies that are so sure and confident of their target market that they make ads that will be incomprehensible to anyone outside that group.
Here’s an ad that perfectly illustrates this M.O.:
Of course, all right thinking people are huge Jay-Z fans and understand exactly what is going on and are flattered to be included in this communication.
For everyone else: meaningless.
(By the way, Blueprint 3 is excellent.)