companies that use mechanical turk share your sensitive data with people working in third-world clickfarms.
we "digitally shred" your audio and image data before we get it annotated.
Basically we just productizing CAPTCHA and making it work on smartphones and Ethereum
Encryption is reversible, the question is who has access to the keys and what data does it unlock.
Also, it seems odd that this is never mentioned in your privacy policy (ctrl+f "crypt" to match decryption/encryption/cryptography, but no hits). You'd think if this is a core feature to maintain security and/or privacy and distinguish yourself from the competition, it would be in there...