This is a term made up by critical liberals and applied abundantly in echo chambers like Wikipedia. Producing a movie with black characters to appeal to a black audience in the late 60s and 70s has been condemned and labelled as a form of exploitation. Some clever liberal amalgamated the words Black and Exploitation, then gave themselves a pat on the back for their pseudo intellect and started spilling the term gushing with it onto the pages of magazines, and critical reviews. After all, if you produce a product that you intend to market to a customer base, are you not then in meeting with their definition of exploitation? The Socialist's Point-of-View perhaps, marinated with liberal white guilt and too much academia.