Tests to see if the moderation limit is not exceeded

        @return: True if the moderation limit is exceeded

def is_moderated(self, curr_time, pipe):
        '''
        Tests to see if the moderation limit is not exceeded

        @return: True if the moderation limit is exceeded
        '''
        # get key, otherwise default the moderate key expired and
        # we dont care
        value = pipe.get(self.moderate_key)
        if value is None:
            value = 0.0
        else:
            value = float(value)

        # check moderation difference
        if (curr_time - value) < self.moderation:
            return True

        return False