on the other hand, if you created a few hundred plausible but fake people and filled out many of these, you could collect an excellent data set of "shady grey m

on the other hand, if you created a few hundred plausible but fake people and filled out many of these, you could collect an excellent data set of "shady grey market lead generation services that sell peoples' data in aggregate", for the purpose of examining what sort of emails and phone calls they make to the contacts, and then training an anti-spam / call-blocking data set on it.