Boston’s public transit system authority has put the kibosh on advertisements for all games with either an M for ‘Mature’ or AO for ‘Adults Only’ rating.
The argument is that since public ads for pornography have been forbidden, it’s only logical that ads targeted at older gamers should be banned as well, lest those ads corrupt the rail riding youth.
That makes perfect sense to me. No gaping holes in that logic, comparing an M rated game to porn. Nope, not a one.
joystiq.com: Boston transit system bans M rated game ads