BlackRefer.com's Advertising Guidelines BlackRefer.com advertising guidelines are as follows. BlackRefer.com will reject ads that we consider indecent, vulgar, including pornography. BlackRefer.com will reject ads that discriminate and fail to comply with the express requirements of federal and state laws. BlackRefer.com will reject ads that contain fraudulent, deceptive or misleading statements. BlackRefer.com will reject ads that promotes online gaming, gambling, or wagering. BlackRefer.com will reject ads that promotes the use of alcohol, and tobacco products. BlackRefer.com reserves the right to reject all types of advertising we may find objectionable.