True.
But people have specific sense of humour sometimes. Also there are stupid people. Combine the two and there could be a possibility of this being a joke.
That's not a joke though. It's a oblique threat to anyone that doesn't speak the Queen's English.
Which is a joke in so much as the rife grammatical errors in that racist diatribe mean that the author is unable to complete the task they're setting out themselves.
True.
But people have specific sense of humour sometimes. Also there are stupid people. Combine the two and there could be a possibility of this being a joke.