Not all work requires every facet to be so sharply optimized, and there may be other constraints that are completely invisible to you. Some that were easy for me to imagine: the parent works in a heavily regulated industry, their IT team is slow-moving and paranoid and this is a safe, under-the-radar workaround, the output is "good enough" for their purposes and they find tinkering with it to be fun.

Regardless I don't think it's fruitful to be so condescending with such little insight into this person's situation. Even if you had total insight -- let people be and withhold your judgement, or at least keep it to yourself. Making people feel stupid is a great way to turn people off to pretty much anything else you have to say

Won’t it depend on what you use it for? A less capable system might be fine for boilerplate, moderate re-factoring, etc. Not everyone is building whole features in one go.

To me, what's not rational is believing you must rent the tools of your trade while exposing all of your employer's intellectual property to a third party. Difference of opinion.

download LM Studio to play with, and it will let you search for models... try Qwen3.6-35B-A3B at 4,5 or 6 bits (6 bit XL is near perfect) and use pi coder or another harness to access it... you can also try Unsloth studio and try same model to start. LM Studio slighter easier to use, Unsloth probably better quality. Neither one is super great quality by the way (meaning: they crash or act weirdly too often to be full production solutions, but can work for local coding). ONCE YOU DOWNLOAD EITHER APP... it will let you search huggingface for the models. Just type qwen to start looking and ... start messing around. And you connect the pi coder harness using the http interface that LM Studio and Unsloth offer to the engine API, so make sure you figure out that url and turn it on... something like 127.0.0.1:1234/api would be a typical IP (localhost) and port (1234 is used by LM Studio)