Stanchion Blemish

I noticed a blemish on one of my Stanchions yesterday, I'm don't know how it got there or how long it has been there, the area still feels very smooth but you can feel it just about, but it isn't rough.
What are the implications of such a blemish?
What are the implications of such a blemish?

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Parktools :?:SheldonBrown
I was hoping that would be the case.
Cheers
Parktools :?:SheldonBrown