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This seems to be an element of Engrish in most situations.
It is THE only situation. No, I disagree. If you had said "Written/spoken by a non-speaker of English" then it would be true. It is THE only situation because otherwise it's just stupidity.
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I really can't see a native speaker writing KILL OUT, but you never know.
No, YOU can never know, because you have no mind for style, for interesting writing.
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4) Must sound or read awkwardly to a native speaker. OR Must sound or read awkwardly to one fluent in the target language.
No, because it's not a matter of how awkward something is, it's a matter of how incorrect it is
"Beware of the Slippery" is Engrish because Slippery is an adjective but is being used as a noun by the use of the definite article.
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Rai is being argumentative here.
Nothing pisses me off more than speaking about someone as if they cannot see/hear it.
Писатель всегда будет в оппозиции к политике, пока сама политика будет в оппозиции к культуре.