I really can't see what all the fuss is about, its just advertizing, and its not exactly a new phenonemom is it ?
Remember all those adds in "Blues and Soul" for the Cats, Mecca, Wigan etc with all the current spins of the day dotted around the edge.If publishing a play list, brings in just one extra punter it's done its job and has cost the venue "bugger all" to do so.
The argument that we all know what to expect from certain djs at established venues, is a bit like saying, Rick Stein specializes is sea food, so he doesn't need to display a menu outside his restaurant.
As for protecting exclusivity, abrv (insecurity) ......................the Halibut is really ..............Dover sole but don't tell Jamie Oliver.
Monty Python script writers could't make this stuff up.