[NoMoreNicksLeft]

When you want to sell your data because it's so valuable people will pay money for it...

But you don't want people to copy it, so you fill it full of garbage.

It's a bit like Walmart adding a little bit of sewage to their consumer goods so people are less likely to shoplift. Don't worry, the baby formula only has 3 grams of human fecal matter in it!

[undebuggable]

It's more an equivalent of a RFID tag. Sometimes placed in the middle of a printed page of a book, or irremovable in other ways so others are wondering whether you actually bought the item, but oh well...