The question "Why can I log in to my Facebook account with a misspelled email/password?" was asked yesterday, and a very well-written answer gathered nearly 200 upvotes in about a day (I assume the question went to HNQ).
Roughly 16 hours ago, the question was marked as duplicate of "Facebook password lowercase and uppercase", which is in essence the same question. The answer to this question comes to the same conclusion, but somewhat lacks depth and - more importantly - does not cite an official source.
Is this question still considered a duplicate? Or should the older question be marked as a duplicate of the newer, better question (which I have seen several times happen already for this very reason).