Re: Proxy or carrier-grade NAT?
Yes, I'm curious as to why this needs a database of the proles - I read it as "when we make a request, we may include other identifying information that the respondent ISP is required to attempt to match in a defined way" - e.g.
Please tell me all about IP address aaa.bbb.ccc.ddd, where subscriber name is similar to "J Doe", and where geolocated, it was near Hyde Park on the 3rd Jan 2015. If a match is made with a pukka subscriber, give me everything to do with them.
Or is this more a generous interpretation that the civil servants will attempt to create a database with this legislation?