I had a good germination from Laurentia seeds which I had not cleaned when I gathered them in pods. By March, the chaff was powder, and I was not sure whether there were seeds or not. I sowed the works, and to my great joy there was great germination! The commercial seeds had only given me one or two sprouts.
I like the idea of scattering chaff so any seeds can sprout in the garden or in wild areas.