As developer,
I want to use the ip4r extension as the built-in IP address types in Postgres work okay for many applications, but are lacking when it comes to applications that heavily work with IPs, like ours. ip4r adds several IP types with expanded functionalities that enable us to perform far more efficient "IP in range" type lookups, as well as tracking IP ranges that don't fall neatly in CIDR boundaries, plus general performance improvements. Very useful for our malicious IP threat feed service, abuseipdb.com, as you can imagine.