Earlier quoted context omitted.
What site you run and why you need to log my personal data(IP,browser,other identifying data) do you have good reasons to keep it forever or you purge it after you analyze it?
How is IP and browser personal data ? If you think it is, you should not be on the internet.
The sensitivity of data can change based on context. My name isn't sensitive until it's attached to something like browser history or medical files.