One's having the highest recorded IQ is hardly an indication that one is `the smartest person in the world'. Personally, if I were the smartest person in the world, I think I would dedicate my time to a more worthwhile cause than answering puzzles for a pop culture rag, and writing books full of even more such puzzles. Really. I'm not saying she's not intelligent---she's probably far more so than me. But to say she's the world's most intelligent person ignores that:
vos Savant (at least a few years ago, and probably still today) fails to provide references to the places the puzzles or the solutions she gives were originally published, even when these are academic papers only a few years old. Instead, she advertises her own books. The academic community has a word for that: unethical.