We rightly restrict tobacco advertising because freedom to advertise is balanced with and does not always trump public health. Rights and responsibilities are not absolute, they exist in a complex tapestry of priorities.

Do you think there should be a market for voluntary live organ transplants?

or, gambling is proven addictive, has provable financial costs to others.. and is therefore regulated. Precedent in Alcohol, Tobacco and Firearms, some medications, other things.

In other words, in a very free and fair society, I personally see the need for regulation and oversight for this activity. Is that a carte blanche for surveillance and command-and-control things? no .. this is not new, the media over which it takes place is new.