when I am on a kiteboarding forum I prefer to see ads that are relevant to kiteboarding and not ads for hand mixers just because I looked at or bought one last

when I am on a kiteboarding forum I prefer to see ads that are relevant to kiteboarding and not ads for hand mixers just because I looked at or bought one last week. I also think targeted ads are really bad for society in general. They have incentivized the building of companies that have created massive surveillance and manipulation systems on a scale nobody would have dreamt of some decades ago. Think about Stalin or Hitler having the datasets Google or Facebook have built up and how they could have used them. I can't see anything good about targeted advertising unless you buy into the vision that people's only purpose in life is to buy things.