Collecting the information of the various ways that Alice can talk to Bob is a righteous bitch ATM. However, if we make it easy for people, we also make it easy

Collecting the information of the various ways that Alice can talk to Bob is a righteous bitch ATM. However, if we make it easy for people, we also make it easy for machines, and that leads to massive privacy issues. I like that my profiles are available to people I want to communicate with. I don't like that they are also potentially available to siding salesmen (I live in an apartment).