One thing I would add along the lines of refusing to deal with certain requests or requiring requesters to provide certain information is that being more explicit in giving the commissioners the authority to manage their caseloads through mechanisms like mediation would also help.
The reality is that we have a large volume of files. We want to deal with them as best we can. Some of them require extensive, substantive examination; others less so. More authority for the commissioners to manage the caseloads in a way that is fair and just but also efficient would be helpful.