I mean, it's not a terrible convention. On the website they have a badge ("docker official image"), but devs aren't usually looking at the website, they're looking at their Dockerfile in vim or whatever. This is a straightforward way to communicate that semantically through namespacing.

Still, shame on docker for the rug-pull.

It's better than none, but explicit over implicit. If it were namespaced like PULL docker.org/offical/alpine:latest that would be better, imo.

They are also available at docker.io/library/alpine and equivalent, and I'd advise anyone to start using this format as more distros might break the default registry[1].

[1]: https://man.archlinux.org/man/containers-registries.conf.5.e...