Everyone can. I can't answer questions on what other people will do.
My pet peeve is people who put their main email address in their profile. Think about how many people can find you, and connect to others in your family.
I recommend using a free email service, (like gmail, hotmail, yahoo, hidemyass.com etc) and set up an email account only for fibs. DO NOT use the same email account u use for facebook or other social media sites.
It should be an easy five minute process to set up something like firstname.lastname@example.org for example. That way, you and your family cannot be located online, and even if you do get spammed it won't matter. Just don't open anything unless sent by patti or other trusted fibs friends.