Tests comment post requests for the djangospam cookie.

def allow(self, comment, content_object, request):
        """Tests comment post requests for the djangospam cookie."""
        # Tests for cookie:
        if settings.COOKIE_KEY not in request.COOKIES \
            and (settings.DISCARD_SPAM or settings.DISCARD_NO_COOKIE):
                return False
        elif settings.COOKIE_KEY not in request.COOKIES:
            comment.is_removed = True
            comment.is_public = False
            return True
        return True