da hell u talking about woman
Closed Games
"The most significant phenomenon of the last few years has been the Berlin Variation, putting an end to nothing less than the move 1.e4." - GM Sergey Shipov (~2013)
http://www.jeremysilman.com/shop/pc/Vigorous-Chess-Opening-Repertoire-for-Black-A-76p3857.htm

My guess: computers. They, and the super-GMs using them to prepare for a decade of strong tournaments, solved out all (many of?) the decent high-tactics open lines, which therefore remain to this day merely high-theory drawing weapons.
Could be wrong, though.
good point! I think in some degree you are right. Maybe not the favorite strategy, but still an annoying one. Knowing that I think it best that when the opponent tries to cram up the game really think about how to counter their plan.
My guess: computers. They, and the super-GMs using them to prepare for a decade of strong tournaments, solved out all (many of?) the decent high-tactics open lines, which therefore remain to this day merely high-theory drawing weapons.
Could be wrong, though.
Partly true I think. I've even heard of FMs talking about some super complex (complex to me anyway!) Najdorf lines and Grunfeld lines as ways to draw.
But there are other complex (both tactically and strategically) positions most super GMs seem to stay away from. These are positions where engines aren't as easy to use. For example KIDs or Winawers.
If anything I think we've seen a shift to choosing practical positions and ideas, with Carlsen leading the way of course.
Although none of this really matters at our level. I think e.g. the Ruy Marshal gambit is very dangerous for players like us (although I am willing to take the white side!) even though it's more of a drawing weapon for the elite.
In any case, I can't imagine the OP has noticed any of this in his or her own games.
What made them all the rage? When I first learned chess the opposite was true. People couldn't wait for open lines. I'd go so far as to say that they went a little overboard on tactics and attack. Nowadays, it seems with some guys that a pawn is more valuable than a piece and they would do just about anything to keep a position closed. What created this huge shift in how people approach the game?