Why do they do it? To earn "dirty" money. Every click on an ad generates dough, and these crooks know how to get some of that money. This is a real problem that all of us who have been in this field for a few years know that it happens and that each one of us has tried to cheat as best we can, but the fact is that when you go to Google representatives to put on the table You never get a solution to this issue.
Or at least a consistent response, for example, accepting that there is a problem and proposing alternative methods, or simply not instigating you to invest more in display campaigns to generate B2B leads when you report that you have these C Level Executive List problems. I remember with a client a few years ago that we invested about €7,000 in a month. We announced a Usability (UX) SaaS platform, geographically in England, Ireland and other English-speaking countries in Northern Europe.

And I remember that that month about 14 leads from Africa entered, all with contact information that you then searched on Linkedin to find the person and it did not exist (none of them), all with Gmail email addresses. And they all came from an IP in a town in the Netherlands. Brutal. We did not give credit. My frustration as a Google Adwords manager was that when I reported this to the contact person assigned to me at Google Partners at that time, I did not receive any solution, on the contrary, I received a denial of the problem, which pissed me off even more.