Well looking at the pics, they sure don't look pretty to me. Looks like a sewer drain. Maybe he is a puddle mudder, while I avoid it like the plague. There is dirt in the gap and a scum ring around the nipple. That gap IS bigger than around my holes. Salt will get in easier for sure. Plus on the outside of the eyelet at 7 o'clock, it looks like corrosion to me.
I purposely got black coating. Bare Alu soon looks like crap and will NOT last as long.

Why so many get mesmerized by this fad is beyond me. They can reduce weight with no penalty?? LOL