The phrase vibecode has become totally meaningless. The original use was too “give in too the vibes” and let the agent go wild. There is no indication that is what Linus is doing.

The fact is LLM’s have proven to be good at finding bugs. Suitably constrained they can be diligent and helpful assistants.

The Bun experience is instructive and if that was Linus’ end goal it would be concerning but I don’t see any evidence that any of the Linux maintainers are interested in that sort of wholesale conversion. The good projects with taste will adjust to the new tools and the slop projects will eventually collapse under their own contradictory architectures.