A lot of the passion/hobby newsletters I receive would not exist if the person writing them had to pay to send the emails. Adding a cost to distributing information does not increase the quality of distributed information, it just increases the percentage of information distributed that is trying to make the sender money.

Maybe I'm misunderstanding the article. Are they talking only about marketing newsletters or just any kind of mass-emailing? Because sure, I'd support adding a toll to sending marketing emails. If your intent is to sell something, it should cost you some money to advertise.