at this point, she is literally just attempting to make a point of the fact she has no shame, as though lacking such a basic human emotion that provides an individual with the ability to adhere to the most basic social rules of dignity, decency and respect is something to be proud of.
she is fully taking advantage of releasing a book that labels her as shameless to justify behaving even more inappropriately than usual - simply exploiting it as an opportunity to share as much vulgar and crude content, featuring as many reels of herself in just her grubby underwear as possible, often in public places, justifying it as necessary to promote her book which - coincidentally - seems to share a huge amount of similarities with the book she mentioned recently that she read, which taught her that all parents
duck their kids up, thus doing so is absolutely nothing to feel guilty about - and the tagline in her book literally references the way her book will supposedly teach them how to live a life free of guilt and shame - regardless of your behaviour, your decisions to publicly humiliate your sons and set them up for years of bullying etc. that's literally why shame is an important emotion - it helps you identify between right and wrong - yet Laura is proud of the fact she can continue with her utterly vile behaviour and not feel any shame - thus aims to teach other people how to be equally as scummy as her.