I know pedantry is a HN thing, but I suspect the majority of the audience here understood what "obtained" meant in this context.

This seems like a particularly weird hill for you to repeatedly die on.

I would expect a database of valid email addresses had been compromised. Context of what is being “obtained” matters, of course. But the sum total of valid IP addresses is a fixed, finite, and well-known value. Can you write a script to generate all valid email addresses?

A money printing machine

>printf("$100");

For emails, I would think they just got the address.

For IPs addresses, I would think they got an assignation as well, because IPs numbers without assignations are worthless.

It all depends on the context.