Yup, use of whom in a guy's profile correlates with 31 ... Here's why we have it. English nouns used to have a thing called case inflection. What this means (in simplified terms) is that every ...

In practice, I would say: 'The girl you described as smart has failed the exam', but that's because I'm not sure if I should use 'who' or 'whom'. In conversational English, 'in practice' as you ...