In a generally misguided and counterproductive attempt to shut down sites like backpage.com that facilitate prostitution, politicians have convinced Mastercard and Visa to not accept payments for ads on those sites. That is leading BitCoin to place ads arguing that backpage advertisers should use Bitcoin  to pay for ads. Many people would be surprised to learn of the many ways in which the porn industry and sexually oriented sites have advanced technology, such as in the use of video or SnapChat.