Checking out the question that it's an exact duplicate of leads to this.
I get that people with sufficient rep can see this with no problem, but for others like me (and those that aren't part of the math.se community), this seems like a bit of a dead end. What should be done in cases like this?
Some thoughts that I've had are:
- Undeleting the page not found question may be against the wishes of the person that deleted it in the first place, but for a question to have been marked as a dupe with respect to the page not found question it must have had some answers (right?)
- Someone with sufficient rep could just copy over an answer that's deemed good enough and unmark the question as a duplicate.
A similar meta post is this, but this question falls outside of the January 2015 period referenced to in an answer to the question. Furthermore, there doesn't seem to be an answer for what should be done about dead ends like this.