Here is my theory
Apple implemented antonymous unsupervised neural net somewhere deep inside auto-correct and left it in learning mode. For some users, it will evolve into replacing good words with rubbish. For some, it will evolve into automatically adding rubbish words in the middle the sentence. Next, it will evolve from auto-correct to auto-type, automatically writing and sending messages without users' involvement.
I suspect that some posts on El Reg forums could be the proof of it.
Biting the hand that feeds IT
