To the contrary, to me table salt tastes more salty. As a matter of fact, Kosher salt is a larger flake, and can't even be used in a normal table salt shaker. Table salt is much denser. I have a very pretty covered salt cellar with a matching spoon for my KS. Perhaps you can't taste the bitterness in table salt, but many people can, including myself.
But, does iodized salt cause a noticeable bitter taste in recipes?