Since those ads are no longer easily viewed by the general public, some politicians will now consider it a victory against the evil sex trade. So now, instead of the sex trade of teenagers easily tracked by authorities and gov't officials, it has now gone back underground where it is harder to track and deal with those issues. Prohibition was supposed to improve society, but instead the booze went underground, organized crime developed, and more social problems arose as a result. Just as people like to imbibe, people also like to have sex (gasp! shock!). The allegory continues, just substitute "booze" for "sex trade".

Nononono! Light is analog! This is all digital, which is better! Black & White goes fast through any cable because it uses lower bandwidth and cables are limited by the bandwidth they can support. Everyone knows colour uses more information and so needs more bandwidth so you need the more expensive cable which is rated to handle higher bandwidths! You don't want your colours to arrive a split fraction of a second after your black & white does, do you? Imagine how the picture would end up!