First of all, thank you for taking the time to provide all those links. That was a lot of painstaking volunteer work for the sake of the betterment of the site.
Second, thanks for explaining the problem in a lucid way. I probably speak for all or most of the mod team when I say this was both enlightening and helpful.
Third, I've started unlocking these questions, working from the bottom up (since you seem to have sorted them chronologically, oldest to newest).
One more problem with this overall situation (this is more of a meta.SE issue, but I'll address it here anyway) – I don't see any way for a mod to easily notice these questions are locked.
I've taken a screen shot of some ELL questions (some locked, some not):
![enter image description here][1]
I don't know how I could distinguish between a locked and unlocked question just by looking at it. Is there an easy way to find all the locked questions, or for a mod to know that a question is locked without trying to edit it? [1]: https://i.sstatic.net/rrHob.png