Making your tool less compatible with the rest of the ecosystem at large not only makes it harder to move to your tool, but also harder to move away from your tool. Given these AI labs basically have no moat, seems they're trying to hold on to every little piece they can do make it harder to move away, even if it's a really tiny and marginal feature, like specifically titled file on disk... Kind of embarrassing overall, but I guess they make so much money no people there have any shame left to feel.

just the filename. The contents of the file are unstructured, besides being markdown

Why do people continue to use the word “moat” only in context of AI companies?