weirded out

so, my sister emails me today with some family history questions. she found an online site with some of our paternal grandmothers family history and she's emailed the guy whose site it is and he has some questions regarding our husbands names and kids names. i told her i was uncomfortable with my kids middles names floating around cyber space. She then gave me the site addy and i went to check out the site. the page she gave me is my dad's page. it has his name, birth year and my mom's name and birth year, when they were married and when the divorced. it goes on to list me and my sisters full names and our birth years. it gave me the chills. totally weirded me out. i'm not sure why, but i'm uncomfortable with someone knowing these things when they don't know us at all.