Maintainer of the Alpine glibc package referenced here. For some background context, this package was originally created to solve a specific problem long before Alpine provided glibc compatibility packages like `libc6-compat` and others. I agree that this package shouldn't be considered "blessed" or an official Alpine package or a default solution for running programs originally compiled against the GNU C library on Alpine Linux, far from it. The source control repository uses `alpine-pkg-` as a prefix to denote what it's used for—not as a means of assumed official status or such like.
What I find saddening is to see passive aggressive statements like
> I have additionally suggested that the TSC may wish to have the Alpine Council reach out to the alpine-glibc project to find a solution which appropriately communicates that the project is not supported in any way by Alpine.
To the Alpine Linux TSC: please get in contact with me about any and all disclaimers you want to add to this package! I'd love to have these discussions faster and in the open, rather than discovering this disquiet tangentially. Let's get these issues resolved as soon as possible in a way that everyone concerned finds acceptable.