Haven't we all. I still have a code from back in late 80s and early 90s that I'm asking myself what that really me that wrote it.Incredibly efficient code that nobody can figure out... written by a stoner who was too blitzed to remember how he himself came up with the algorithm. Brilliant.
Some larger software houses were developing the code on PDP-11 and then porting it to microcomputers, but many didn't have that privilege.Assembly is different than higher languages but certainly decipherable. It would help to see the code but I am guessing the ones who have looked at it may not be familiar with it. Looking at the Reddit messages I see where the confusion lies and some have soled this easily.
I have been up late many a night and resorted to , uhh, enhancements and it is surprising what you can come up with.