That LinkedIn endorsement feels like salt in the wound - getting praised for "project management" when they managed to disappear with six months of your unpaid work. The audacity of someone saying "budget is no issue" and then ghosting you completely shows a level of disrespect that goes beyond just business. This kind of betrayal cuts deep because you trusted them enough to invest months of your expertise, and now you're left questioning not just this client but how to protect yourself from future ones who might do the same.