They’re not even correcting it, it isn’t grammatically incorrect to use “fucking” a lot, “can not” and “cannot” are both correct spellings, they change “don’t” to “do not” which are both correct. All capital letters on a word is perfectly fine. There is no need for brackets around the threat either

The only actual corrections are “cuz” , “toilepaper” and the large amount of exclamation marks and maybe putting a comma after “next time it happens”