if season 4 truly took place in 1986
then why didn’t anyone say that’s not a knife, this is a knife?
shareLMAO! Crocodile Dundee didn't come out in the U.S. until September. Season 4 begins shortly after Metallica released Master of Puppets, which means Eddie Munson learned the song in record time.
You could make the same argument about why Season 2 or 3 never referenced Spinal Tap, even though they could just as easily make a joke about "These go to Eleven."
*SEASONS 2 & 3 SPOILERS*
But of course in Season 2, Hopper intentionally isolated Eleven from Mike and the gang, and in season 3 she broke up with Mike and then pretty much got back together before she and the Byers moved to California.