Essentially they can "harvest" whatever you give them but the question is how are they going to use it as well as for how long they are going to store/archive i

Essentially they can "harvest" whatever you give them but the question is how are they going to use it as well as for how long they are going to store/archive it. I agree this things should be regulated; my thinking is something in the veins of banking industry akin to regulations regarding what banks can and can not do with your private information and for how long they should or should not store your transactions.