The point was that the package owner can make the situation worse for themselves by engaging in a revenge scheme. It highly depends on the local criminal culture. I some countries, I can see a gang deciding that the homeowner needs to be "taught a lesson". Police might catch them even, but the package owner might be in the hospital or morgue by then.
(Shrug) There are worse things than glitter. If I order a gympie gympie plant on eBay and someone steals it off my porch, for instance, I can hardly be held responsible for the outcome. The police will just laugh at the thief, the doctors and nurses will stifle a chuckle or two of their own, and the jury in a civil trial isn't likely to be sympathetic.
