Shocking because it will produce extremely large amounts of data, makes the logs extremely security-relevant, and probably breaks all kinds of privacy laws. E.g

Shocking because it will produce extremely large amounts of data, makes the logs extremely security-relevant, and probably breaks all kinds of privacy laws. E.g. in the EU a user has a right to request that a company delete all data they have collected about him. So you'd have to go through your logs and purge all request data from that user - possible, but likely to be overlooked.