Wash the kale and thoroughly pat it dry If using curly kale, strip the leaves away from the tough stems and discard the stems. If using Dinosaur or Lacinato kale, cut off and discard the tough stem bottoms; the upper part of the stems may be finely chopped and used. Roughly chop the leaves into small pieces. (Optionally, slice the leaves in half longways, stack them, and then thinly slice crosswise.) Place the chopped kale in a large bowl.
Sprinkle the kale with 1/2 teaspoon of the salt. Massage the kale with your fingers for 2 minutes. The leaves will soften and turn a darker shade of green.
Mix the undrained pineapple, lemon juice, oil, honey, and 1/4 teaspoon salt in a small bowl; pour over the kale and toss well. At this point, you may cover and refrigerate for several hours (longer is fine) to allow the flavors to develop.
When ready to serve, sprinkle with the chopped avocado, sunflower seeds, and dried cranberries or golden raisins; toss well.