Don't make any plans to have a physical EU footprint and you can care less what the EU thinks of your internal policies. EU customers can take it or leave it. Their choice. It's not a warm stance to take, but you've probably got a dozen other balls in the air that you're juggling. EU data compliance probably isn't one your worried about as a small startup.
(especially european users, and businesses)
Personally, I don't see much of a problem when my IP is stored somewhere since you'd need a reference, but others have apparently thought more about it and want it to be anonymized.
(I've now come up with scenario: If you have access to multiple such sets of data, you could connect accounts from different systems. I. e. when the youporn logs leak, someone could tie the data to your HN account etc.)
Combine that with leaks of a social network where you have real names and IP addresses, and you could actually identify the name, job, address, etc of everyone who watched a specific clip of porn.
That’s very bad.
Metadata. Not even once.
Not in (any of) the United States.