Anti-spam commandos may find themselves caught in the legal traps they helped design for spammers. They fear these organizations will leave the door open for spam in the future, and that the bill doesn't address shifting the cost of spam from the recipients to the senders. At least junk faxers have to make a phone call for every fax delivery. Spammers need send only one message to commandeer the resources of thousands of people. The law also makes it illegal to send messages without the name and electronic address of the real sender.
Enforcement remains a problem, of course.
Though bills such as these will discourage many spammers, certain groups will never quit as long as there is money to be made. Even though the cost of spamming is minimal, zero results make any cost too high a price to pay. No spam sales will slowly result in no spam. Spam is a highly emotional issue to many people. Internet bandwidth used to be a prime argument against spam, but that no longer holds water.