I have never seen or experienced micro-corrosion. I have only seen proof of it in 1930's Popular Mechanics article.

At the OK get together I tried out an Escher with my 132 imp. Boy was I looking forward to using it. After wet sharpening it I wiped the blade and put it away. Things happen, and it wasn't until a week after that I remembered: Oh yeah.

I wanted to feel the Esch so I never stropped it. (Lee had a nice stone in that one.) Since I have used the razor 3 or 4 times; without stropping or oiling. only wiped and put away. I think it's about ready for a dozen or so laps now

Further still imagine a sharp blade put away for 70 years or so. That steel is considered just fine and a single resetting of the edge is supposed to make it fit for use.

That same imp which was in pretty good condition when I got it required multiple bevel resets before it would hold an edge. It'd shave 2 or 3 times and become quite uncomfortable. In fact all my vintage blades have been that way.

Micro corrosion affecting edge performance on a daily basis; ha. show me the pics