I agree with Heather on this point: Focusing on the "purpose of open
dissemination" is important.
Heather's last suggestion regarding whole repositories being downloaded
by other repositories can be improved by conceiving all of this within a
general LOCKSS context. In other words, the question
Open access is in the process of transition from a toll access system that
continues to yield enormous profits to a very few publishers at the expense of
the rest of us. OA gains have been significant, but I do not think we should
underestimate the temptation to revert to toll access. The SSRN