There's no citation for that claim and it would be unlikely for there to be one.
It's just some dude's personal impression about a subjective matter (a word in transition), and carries no more weight than any other comment being made here.
A more meaningful source would be a usage guide like Garner's Modern English.
It's just some dude's personal impression about a subjective matter (a word in transition), and carries no more weight than any other comment being made here.
A more meaningful source would be a usage guide like Garner's Modern English.