I've always suspected that the telcos took a huge cut of third party billing. Which of course is why they make it possible, don't call attention to it in billing and play the ignoramus when it comes to the basically fraudulent nature of the whole situation.
The cell carriers are better about removing the charges and refunding multiple months of charges (well, at least 2-3) as well as being able to block them. Qwest was always terrible on our commercial accounts about refunding crammed charges and claimed they couldn't block them.
I'm glad to see the FTC do this and I think they should go so far as to actually ban the practice outright, at least as practiced. If they can do it the default should be "blocked" as a billing status on all accounts. Third party billers with a high degree of fraud complaints should be banned and their names forwarded to the FTC for criminal prosecution.
On the flip side, it seems so lucrative and low risk I wonder how I could get in on the action.