When people compliment you on highly salient attributes, you should be skeptical.

If you have a very prominent tattoo or a funky rainbow-colored jacket, people will frequently give you compliments about it, whether or not it is actually good. When there is a highly conspicuous thing, people cannot resist commenting on it. But the only polite way to mention something about someone's appearance is to give a compliment. So people who make terrible fashion choices are frequently reinforced in their belief that everyone around them thinks they look great.

Similarly, if you give a public speech in front of a large audience or perform a song at a concert, everyone will compliment your performance, even if it was bad, because they can't bring themselves not to mention the most salient fact about you at that moment, and a compliment is the only socially acceptable way to do that.