I've seen someone in my area walking her dog. She stopped to 'scoop' the poo into a plastic bag, put it down, and walked on. I wondered, "HUH? Why stop to scoop it, bag it, and then leave it?"
Well, later I had my answer! I happened to be in the same vicinity a while later, and saw her and her dog coming back from wherever they walked to! She bent down and picked up her 'package', and walked on!
So, she was just leaving it there while she was finishing her walk, and picked it up on her way home! OY! How nice if she'd had the little knitted poo holder! No odors, no unsightly visual!
And no 'inquiring minds'!!