> because they remove the outer antibiotic coating before sending them to stores.

The coating is oil from the chicken, and they wash it and replace it with mineral oil, which works just as well.

I speak from experience: I have not refrigerated US bought eggs for around 10 years. Not a single problem.

If you keep them un-refrigerated for more than 2 months (which I did because there was a really good deal, so I bought a lot), the eggs are not fresh, the yolk falls apart easily. (So not great in certain recipes.)

However they are not spoiled or anything like that, and the taste is unchanged.

Partly true. The washing process removes the natural coating, but this is replaced by a synthetic coating. GP is correct.