The Duffer Brothers (writers) were born in 1984, so I don't think they'd remember much at all, they were alive but were a lot younger than the main kids in the show.
I was born in ‘83 and I think they’ve done a great job building a fantasized version of what the 80’s was or could have been. They’ve recreated a lot of tropes from movies they probably grew up watching.
The show has so many anachronisms I find it impossible to watch.