I still find worrying the concepts that the observant who genuinely did not know that the chickens were not properly kosher committed any sin or that those who did not eat them ought to atone.

Certainly they committed no crime and have no obligations under civil law.

I also still find worrying rules that cannot be exposed to rational discussion.

Perhps if there are others who wish to discuss this train of thought they would go to Mick's other thread, the title of which is not wholly apt to these issues, but it will serve.