An IP address is considered personally identifiable information in at least Germany. If you're storing that you'll already have to think about the GDPR.

This is just another misguided attempt to adhere to the letter of the law while going against its spirit. Is is misguided because it's based on a wrong understand of what the letter of the law actually is. You see this a lot with adtech and analytics companies who try to skirt regulations through elaborate mechanisms but ultimately in vain.