Well if you want to really be pedantic, they said every name, not average answer, so if most people reply with a blank state, that is still not in the set of ev

Well if you want to really be pedantic, they said every name, not average answer, so if most people reply with a blank state, that is still not in the set of every name, because they're not names. So the ones who actually do reply with a name are, as I agree with them, likely to be older than 100 years.