instead of just having a useless weapon at 0% they could do a three staged degradation.
So you craft a new Winglet Sword, you go out grind for hours die a few times and low and behold your New sword hits 0% your new sword now becomes a Notched Winglet sword slashing Damage is now 40 instead of 100. no big deal right so you keep going for a few more hours, and you Die a few more times. Your Notched Winglet Sword hits 0% its now a Broken Winglet Sword Slashing damage is now 15% and all stats are halved.
Not only would this system give new visual indicators on weapons that are broken and notched, it would also give more time to repair and please crafters as only they can take a notched sword and repair it to its previous state.