A similarly shady/slimy local SEO vendor here called iNET encourages their clients to do the same thing - for instance, a siding company they work with says to

A similarly shady/slimy local SEO vendor here called iNET encourages their clients to do the same thing - for instance, a siding company they work with says to their customers, "we'll give you $200 off if you leave us good Google reviews." Unfortunately, this works exceedingly well, as evidenced by their disproportionate mountain of five star reviews.