Clos du bois wine pursues an advertising campaign that targets the gay and lesbian community. its ad in gay publications features a wine cork emblazoned with the gay pride rainbow. gay publications are examples of for clos du bois wine.

I believe the answer is: product user
Product user refers to the target population which the company intended to sell its product for.
In order to properly target this population, companies would most commonly created an advertising that could be related by the target population and adjust their product specifically for the use of the target population.