Text style guide to prevent text fingerprinting

I can't remember what the correct term for this type of fingerprinting is called. It's about de-anonymizing someone's style of writing. For example, How good their grammar is, what kind of grammar mistakes they tend to repeat, which words to they prefer to use etc. I remember reading papers/reports proving this to be highly successful and accurate.

That's why you need to mix up your way of writing. Sometimes you can throw in some irish words, another time some brittish, …

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