http://www.catb.org/~esr/reposurgeon/repository-editing.html#_the_ontological_mismatch_problem_and_its_consequences http://www.catb.org/~esr/reposurgeon/reposit

http://www.catb.org/~esr/reposurgeon/repository-editing.html#_the_ontological_mismatch_problem_and_its_consequences http://www.catb.org/~esr/reposurgeon/repository-editing.html... is a wonderful read. You are right, ESR has absolutely "spent considerable effort".