This is very useful. This basically means that any future application could automatically whitelist KGT holders as part of either a “N tokens per person” airdrop, or for another application or sale that needs to exclude US buyers. If someone creates a more permanent service that does this sort of thing, in the long term it could greatly increase privacy and reduce risk of data leaks for these kinds of use cases.

Source and More information: This is very useful.

Author: Vitalik Buterin