Malicious no, suspicious yes. There likely were parts of the world a century ago without accurate records. It also appears that supercentenarians are concentrated in places that didn't keep accurate birth records around the time they were born.

There have been people who attempted to adopt the diets of the "blue zones" where many supercentenarians have lived, but maybe in our search for long life we should have been adopting regional poverty, low incomes, and dodgy record-keeping!