The only rigorous honesty that I required to quit drinking was to admit that I have a choice about it, and I always did. The realization that I am not powerless over alcohol is liberating, for sure, but it also makes me feel very bad about the years of damage. But, honesty with myself also illuminates the fact that guilt is a counterproductive emotion to indulge.
When I hear the term "rigorous honesty," it makes me think of digging up the garbage. Some things might be best left alone.