Adding IP address to user activity

The idea would be fairly simple, to add the IP address for user activity. I understand this could be visible, as it is used to be able to track the inferred location of a user. 

Use case

Every so often, in our platform, we have situtations where we need to understand exactly which user carried out certain activities within an account, especially when the user can be accessed by several different people. The IP address would allow us to achieve this and resolve items with the person directly involved with the activity in the account. 



It would be great to have the IP address in the API responses as well.