I have a puzzle that is months old: Find the hidden message!
The solution can basically be broken down to three steps, the first was already done by Joe-You-Know, the third should be pretty easy. But apparently nobody knows the second step.
I personally don't consider it extremely hard, but that might be because I think in a certain way. A hint might make it too easy
Should I wait even longer, hoping that it might be asked one day in the far future (which is definitely possible), or should I give a hint, risking that I might make it too easy?
(This question sort of comes down to "Are old posts usually completely forgotten after a while or is there any significant activity on months old questions?" But there might also be other factors.)