There's probably a law against it, but I've always thought a legal company could make decent money taking cases like this in bulk for free, on the condition that they get to keep all the compensation, while the "client" still gets the satisfaction of punishing the offending party.
That’s pretty much class action lawsuits!
On the U.S., only Attorneys General can go after violators of the CAN-SPAM Act.
It needs to be modified like how individuals can go after telemarketers.