If there is one thing that I have considered a flaw in computing, it's that there have been few ways for inexperienced developers and users to use one simple system which allowed them to circumvent their host based firewall, their network IDS, their edge based UTM and the OS security assumptions around localhost being a protected, private interface. The value of a point and click system to expose these directly to the internet and a domain that serves as a collection point for them can not be understated.
If a service is bonding only to ::1, and not 0.0.0.0 or your current routable ip it's explicitly deciding that it shouldn't be accessible from beyond the local computer. And in a lot of cases, it's right even if it doesn't explain why exactly. When exactly did we decide local port forwarding was too hard even for technical people? Or, I dunno, servers?
If a service is bonding only to ::1, and not 0.0.0.0 or your current routable ip it's explicitly deciding that it shouldn't be accessible from beyond the local computer. And in a lot of cases, it's right even if it doesn't explain why exactly. When exactly did we decide local port forwarding was too hard even for technical people? Or, I dunno, servers?