My time to shine as someone who's pretty deep in this game. There's an enormous and growing market of fake GBPs for the purpose of selling leads called Local SEO Lead Gen. (each entity can bring in thousands of dollars/month.) The thinking is why go through the headache of dealing with clients who can fire you the day after they begin ranking (Local SEO is heavily "front loaded" work wise), will always try undercutti…
A difficult comment to understand. I had no idea what GBP was and had only a rough idea what was being said thereafter.
Someone can create a bunch of them, using some evasive techniques to avoid Google identifying them as one person.
When people call asking for service, that's a potential lead. This info could be sold to a contractor.
The other piece is making the GBP compelling enough--through fake reviews, submitted by web browsers running on separate IPs--to have folks contact them.
More ambitiously, the person doing this creates their own business, hiring out service crews to do the work and capturing more of the profit.