Shef is being discussed in the context of its usability and coding structure, particularly in relation to YAML and shell scripting. While some users appreciate the concept, they express concerns over its practicality due to the strict structure it enforces compared to raw code or shell scripts. Many comments emphasize frustration with YAML and a preference for flexibility in programming, especially for experienced users who work heavily with Kubernetes (K8s). There are suggestions for practical introductions like asciinema recordings to visualize its functionalities.