I think the post of the parent is a bit tongue-in-cheek; I read it mostly as “I don’t know whether there are a few developers that are significantly better than

I think the post of the parent is a bit tongue-in-cheek; I read it mostly as “I don’t know whether there are a few developers that are significantly better than the rest, but I do know there are a few developers that are significantly worse than the rest”. It’s effectively the same thing, but from a different perspective.