[ljm]

And the auto complete on proper nouns. I'm typing someone's name and it'll often get corrected and will take more than one attempt for what you actually intended to stick.

No, Ellie isn't a typo and I didn't actually mean Emma.

[thedanbob]

Not just proper nouns. Often it tries to autocorrect a real but less-commonly-used word to a more common but completely different word.