It looks like Community unlocked this posting on Hidden Features of PHP. Was this intentional, or just a daemon that kicked off somewhere?
I ask because Robert Harvey on March 10th seems to have locked most of the “Hidden Features of XXX” questions, and also added the historical significance notice. But this question’s edit history is complicated. It seems to have been locked and unlocked, noticed and unnoticed, deleted and undeleted, many times over.
Is there some unifying policy on how this sort of question should be treated, and if so, is it being applied evenly across SO?
The comments on that question suggest — well, say, actually :) — that the original reason for locking was so that it not be deleted:
Does that no longer apply? Now that it is unlocked, it is fit for deletion again, challenging though that would be given how many delete votes are needed for such without moderator intervention.
Perhaps more importantly, it can now be reöpened. Is that desirable? Against that possibility, I have just now protected it, but that is scant protection if any.
I have looked for some sort of policy statement on the official disposition towards “Hidden/Secret Features” questions, but not yet found one.
Most of the other highly voted instances of this type of question have been locked and historically noticed once they already have dozens of bikeshedded answers. If there were a clearer policy about this somewhere for us to read (and I suspect it already exists), it would help in making decisions casting close/reöpen and delete/undelete votes.