What is the difference between a wilted salad and a massaged salad?
I've only heard of massaging kale.  If you rub the greens together they get softer, darker and more tender and useable in a salad.  Never done it with anything else. Wilted is steamed or blanched greens. Wilting definitely changes the texture and can make the greens more palatable and less bitter.  I won't eat raw collards. I also always salt and squeeze my cooked spinach before using as it knocks out the bitterness.