Agree that just being hand-written doesn’t imply quality, but based on my priors, if something obviously looks like vibe-code it’s probably low quality.

Most of the vibe-code I’ve seen so far appears functional to the point that people will defend it, but if you take a closer look it’s a massively over complicated rat’s nest that would be difficult for a human to extend or maintain. Of course you could just use more AI, but that would only further amplify these problems.