public String toString() {
	   if (name != null && ! name.isEmpty()) return name;
	   
	   String ret = "Anonymous";
	   if (mbox != null && ! mbox.isEmpty()) ret = mbox;
	   else if (mbox_sha1sum != null && ! mbox_sha1sum.isEmpty()) ret = mbox_sha1sum;
	   else if (openid != null && ! openid.toString().isEmpty()) ret = openid.toString();
	   else if (account != null) ret = account.toString();
	   return ret;
	}