http://programmers.stackexchange.com/questions/98899/haskell-code-accompanying-the-paul-hudak-1994-us-navy-experiment-paperhttps://softwareengineering.stackexchange.com/questions/98899/haskell-code-accompanying-the-paul-hudak-1994-us-navy-experiment-paper
The paper cited is a much-referenced (in the PL world) classic. I can imagine finding the accompanying code would be an occasional if not frequent need to anyone who found the paper useful or interesting or even controversial.
I can think of no sane reason to close a useful question with a correct and useful answer. The only thing I can imagine is that since the mod didn't find the question interesting, they couldn't imagine that others might.