I am dissatisfied with the responses evoked by Joshua22855's query. This is not the secret life of Walter Mitty we're talking about here. What's been suggested amounts to little more than putting a scammer on a Do Not Call Registry -- knowing full well the name, number and address will be changed, and the egregious conduct will continue, unabated.
I characterize the responses for what they really are: nothing more than an ineffective feel-good measure that seemingly "addresses" the matter, while doing nothing to eradicate it.
"So what do you suggest?"
Ideally, I like the approach exemplified by the police dispatcher in the 1980 film: "The use of unnecessary violence in the apprehension of the "Blues Brothers," has been approved." Unfortunately, that is not an option.
Second up, John Walsh -- or Dr. Phil, who promises to hunt scammers down, smoke them out, expose them publicly to embarrassment, accountability, and worse.
Spraying cockroaches and cajoling them to move along is too passive. I don't knock lists, but something stronger than a band-aid approach is called for. I do not like to criticize without offering a solution but let's not pretend calling 311 to report a no heat, no hot water-problem is going to resolve the complaint.
(Note: I will try to come up with a suitable alternative; in the meantime, my wife is waiting very patiently for me to return her phone.)