Very often, I do things that are extremely stupid. I think no matter what our personality type that happens to us every so often. I make a bad call when designing a product that hindsight shows me from a mile away, I put off a client with a sloppy email or a poor follow upI put off a client with a sloppy email or a poor follow up, I miscalculate my monthly income in an astronomical way, or I drop my iPhone 4 on cement while running down the street in heels (for absolutely no good reason besides being dared or trying to catch an ice cream truck). Things like this used to cause me much pain, and stop me in my tracks unable to go forward from the shame I felt and the voice in my head telling me I should have known so much better. There would be absolutely no forward progress while I berated myself, sometimes looking in the mirror and asking repeatedly how it was possible for one person to be so stupid.
While I still think it would be helful for Ms. Chipps to explain her reasoning with respect to this question. Alas, I think this may be what we will have to settle for.
Edit: in the blog post, too, the reasons for apologizing are not limited to cases that only hurt Ms. Chipps.