They say the acidity strips the seasoning. From everything I've read online anyway.
My CI obsession dates back to the year 2002, my dad took me camping and made this wondrous soup, with chicken, carrots, and hot sauce. The camping expedition sucked, it was rainy and cold, but that soup happened to be the highlight of my trip. I have since tried replicating the flavor of that soup without using CI to no avail. Even tried several different cooking techniques and different ingredients, no bueno.
I don't have the pan yet, it's coming in via the post at the end of this week or sometime early next week. I'll try and upload a photo. But the surface of the pan appears grainy, perhaps not as grainy as some other lesser costing pans. But it's still grainy nonetheless and
@dcSaute had the right idea, I think. I may have to do some sanding before doing a seasoning in some beef fat or something. Lodge is a solid brand, but it's not the highest quality CI one can pay for. I think that designation belongs to either La Creuset or Stargazer. On Stargazer's website, their pans don't appear to have any grainy textures, they're smooth to the touch despite being seasoned. And that's supposedly done thru some proprietary technique.