looking for some explanation

My opinion is that there is none. Everything on the internet is monitored in one way or another and if it is on here..someone can get to it. Your IP address is a personal address that you have with your connection too. If they wanted to track you..they could use that address to do it. No privacy on the net.

Internet privacy deals with sharing your information. Every website that collects user information is supposed to have a privacy policy. The privacy policy should contain information as to how the collected information will be used. Most of these policies have same nature in declaring that user information such as email or other details will not be shared to a third party. Hope this clarifies.