Because even HN readers might need this advice, or wish we had when the time came. Software lifecycle isn't the only lifecycle we will have to deal with.
Are hackers not human, sir? Have we no hearts? May we not cry?
We make a world not only for ourselves. In so doing we must above all else be kind. We must not lose sight of what and who we are, lest we invent cruelties beyond any yet known to history. May God forgive us if we fail in our charge - for no one else will. Nor should they.