> With CG NAT and often dynamic IP allocation by providers.
Which are both bad practices on the way out as IPv6 becomes the norm. (Static IP prefixes - to illustrate another PI aspect of this - also mean that ISPs don't have to keep IP logs, which for better or worse, laws require of them for potential future law enforcement purposes.)
And indeed, like other PI, their collection only becomes problematic when it's associated with other PI and/or is done on a massive enough scale (like this service is doing ?) - also remember how government databases are forbidden from merging for this very reason.
Which are both bad practices on the way out as IPv6 becomes the norm. (Static IP prefixes - to illustrate another PI aspect of this - also mean that ISPs don't have to keep IP logs, which for better or worse, laws require of them for potential future law enforcement purposes.)
And indeed, like other PI, their collection only becomes problematic when it's associated with other PI and/or is done on a massive enough scale (like this service is doing ?) - also remember how government databases are forbidden from merging for this very reason.