Jason,
As adam has said flaws such as hagarami has to be taken on case by case basis. My swords hagarami isnt as bad as the ones depicted in the photos, however it is there and visible and close to the edge. However, the nlade itself has alot of niku surrounding the cutting edge which reinforces it somewhat, making it suitable for cutting. Tired blades shouldnt be used for anything other than collecting, regardless if it has flaws such as hagarami. Hope this helps.
Kind regards,
Jeremy