If a man said he likes me for who I am, I would not be offended becaues personally thats what I want to hear.
That's what anyone would want to hear, assuming that we actually care about what others think. But based upon many of the replies here, it sounds like going out of your way to look good for someone who you personally favor is wrong or not worth the effort.
Basically, the woman in the story liked her shoes, her clothes, how she looked and felt. She did like her appearance. Is it wrong for her to feel that way, or to want her date to feel the same way?
Another thing: why is personality "safe" but beauty is not? Personality is no more a constant than beauty. I don't like anyone for who they are. I like them for who I think they are. And it's not uncommon to continue being friends with someone long after they have become something other than what they were when you first met. People change in every way, not just looks.
Personally, I don't believe that "just being me" is the way to achieve successful relationships. You're just waiting for the fish to jump into the boat rather than making an effort to catch them. A desire to please those who you value and a willingness to compromise for it is the only way I can see it working or have ever seen it work. Depending on people to never change isn't a good idea.