The repealability of a rule does not in general make it ineffective: for instance, the committee system itself is established by repealable rules but no one doubts its pervasive effects in shaping legislation.
After all, he has spent the last decade developing a complex theory of amending the Constitution outside Article V through structural amendments.(57) Yet here we find Ackerman talking like an Article V positivist with respect to repealability and entrenchment.