Description of Site E-Mail is very confusing

The description of the Site E-Mail field is very confusing. It talks about having the same email address as the domain, which confused all the people I observed, although they all eventually got to the conclusion that they should put their own personal address in. Also, they got confused that the E-Mail was coming from the site... They didn't understand what kind of E-Mails the site would have to send (forgot password, notification, etc...)