I think we should all drop the commonly used phrase, "does not effect the image". It is particularly difficult to prove that a chip, haze, schneideritis, rub mark, cleaning mark etc..., does not effect the image, unless exacting and precise measurements were taken before and after the damage.
Manufacturers of lenses know that careful control and precision have a significant effect on quality of a lenses' image. We can deduce from this that the issues listed above, will very likely have a negative effect on an image. To what degree? That is hard to assess. But "no effect", is extremely unlikely.
It is fair to say, "image remains sharp and contrasty", "image seems sharp compared to lenses without this issue", "I see no evidence that this has a significant effect on the images it produces".
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