"...but tennis was played FOREVER without all this noise..."
Your right, and the women used to wear dresses down past their knees and men used to wear pants. Like everything else, the sport, and the way it's played is changing. Mostly for the better I think but the sex-like squealing on every single shot does get annoying. Hopefully not all the players pick up this habit and we end up with a Yetti horror movie marathon with every Grand Slam tourney!
It never used to be played with an extended grunt that is used today to disrupt opponents. There is a difference IMO.
LOL. Sadly I guess, I think once you get in the habit of making those noises it's probably hard to stop it.