That's what you want. You don't want these assholes knowing your business. The classic example is when they start advertising a whole lot of pregancy stuff to s

That's what you want. You don't want these assholes knowing your business. The classic example is when they start advertising a whole lot of pregancy stuff to someone who doesn't want to be pregant and for whom that might be a serious personal problem - advertising seen by others who she does not want to see that. Dumb algos means freedom and privacy. Smart algos that actually work stuff out are dangerous and vile. Nobody gave them permission for that. Nobody complains about seeing ads not specifically tailored for them.