[wredcoll]

> what is and is not acceptable with the only litmus test being its... corpus frequency?

How do you suppose we determine acceptability now?

[backscratches]

Not with corpus frequency. Just has to exist a single time in agreed upon dictionary.

[wredcoll]

And the dictionary chooses words based on... how often people use them?

[backscratches]

Dictionaries would be ruined if they could only use popular words. I guess you might be describing very early children's dictionaries, but I dont think that's your argument?