Question

One criteria a usage dictionary uses in ranking a phrase as “incorrect” is when _____ uses it.

Answer 1

The answer will be when (nobody)use it. hope thats help

Answer 2

For a phrase to exist someone must have use it first, therefore the answer will not be nobody. In this case the best answer will be a small group as a lot of idioms and incorrect phrases come from the use of them on a specific context, once it is used out of that specific context it is consider grammatically wrong or it is being used on an incorrect way.