Just chiming in to let people know that I'm following this, too.
Stop locking the threads when enforcing PDMA, instead purge the posts that were rule breaking and then post something akin to this in the thread: "Please do not publically discuss moderator action, please privately discuss moderator action in the way outlined by the rules". The encourages posters to read the rules and contact the moderators appropriately.
This is, as far as I know, the way things work (at least in the forums I moderate. Perhaps it's not site-wide. But in Off-Topic this is exactly the way we handle these situations, which are quite rare to be honest.
The issue here is really moderator accountability. The current intent of the PDMA policy is to insulate and protect moderators, but it does so at the expense of the members of the community who are often upset and angry and deserve a place to publicly appeal moderator actions. As previously demonstrated, PDMA is like a shield for a man wearing an invincible suit of armor. It is unnecessary and 'protects' moderators from nothing except legitimate critiques of their actions. Abusive and insulting posts can easily be deleted in seconds anyway!
If the issue is moderator accountability then relaxing PDMA won't change that at all. I think Camikaze addressed this, but I wanted to reiterate it, because it's a crucial point to understand. What you seem to be thinking is that relaxing PDMA will somehow cause moderators to react to public will regarding an issue. But we can't, since it's the owner of the site that determines the rules we need to encourage the community to adhere to. Let's take foul language as an example. I personally have a wider threshold for what's tolerable in certain contexts than the site's rules. But I'm 41, not 14. We have to apply the rules so that the parent of a 14 year old won't be upset if they happen to notice an emotionally charged political rant on their kid's screen. I can handle just about any language - in context - with no problem. But I can't ignore that rule. Maybe most of the members of the site are like me, but it doesn't matter. We're not accountable like that.
Does that make sense? Rereading what I wrote it might be confusing, but I've only got a couple minutes...
Honestly, the obvious problem is the fact that if there's any accountability, it's completely invisible. People message moderators and it's as if the report goes into a memory hole. Some sort of way to track the progress of your complaint (received -> in discussion -> evaluated -> warning issued/post cleared) would go a long ways towards showing whether you've been ignored or actually given a fair look.
Does that really happen? When I get a PM from a member I try to reply as soon as possible, even if it's just to say "Can't look into this right now, remind me again if you don't hear from me in X hours".
We don't reply to the people who file reports since that would be really, really time consuming. I have messaged reporters to further explain a report if it's ambiguous. But if I get a PM from someone I try to deal with it as soon as possible. The interesting thing is that some people have inaccurate impressions of reports. There was one guy I friended on Facebook after he ragequit the site. When I was made Moderator he laughed and congratulated me, commenting that he thought maybe moderation would improve. He told me that nothing ever came of the times he reported targeted trolling against him. So I check the report threads and guess what? He had reported a total of 2 posts in 4 years, not a single one was trolling him! It was stuff like adspam and language violations
Yet he had an impression that the Moderators were ignoring him....
Ok, sorry I don't have time to post more just now. There are other posts from earlier in the thread I'd like to address in some degree, but I felt it important to get at least something contributed here