See https://darkskippy.com/faq.html

It depends what operation you are doing on the federation. Ecash is very difficult to censor since you cannot identify who is spending it (ideally). So the worst you can do is rugpull

no it isn't its a fingerprint reader 🙃

See https://fortune.com/crypto/2023/06/15/block-bitkey-public-beta-coinbase-cash-app-bitcoin-jack-dorsey/

Isn't that dark circle there a display?