I don't have my vcard option checked and nothing has happened to me. Hmm, perhaps that's why nothing has happened to me. hee hee. Anyway, as I understand it, choosing the vcard option will enable others (such as myself!) to have access to your email address. Think about whether you want someone like me to be emailing you!

Oh, I think HSLD runs a pretty tight ship here, so put your fears to rest!