The consequences for targetted sales is that the data is in the hands of companies which make it available for sale by anybody who is interested. Including scam

The consequences for targetted sales is that the data is in the hands of companies which make it available for sale by anybody who is interested. Including scammers, stalkers, jealous ex partners, enemies in general who want to find the weakness in someone's life to discredit them, spies, etc. That's pretty bad IMO, regardless of what you think about the use case for law enforcement.