- Dropping the periods from Dr., Mr., Ms., etc. even though the books are supposed to teach American English.
- Presenting "there're" as good written English.
- Punctuating song titles 'Like This'.
- Actually, just the horrible abuse of inverted commas in general. There isn't even a discernable method to the madness.
- Pretending that there is an English rule requiring dates and times to be given as "at 10 am, February 24."
- Pretending that "am" is ever an okay abbreviation for ante meridiem.
- Insisting that "okay" is spelt "OK."
- Using "which" in restrictive clauses in horribly awkward ways.
- Claiming that "they're" is two syllables and not homophonous with "there."
- Fudging the IPA to pretend that "er" is pronounced as a schwa.
- "We usually think that the ocean is just water. In fact, the ocean has many different types of water, for example, warm water and cold water."
- General lawlessness regarding commas.
- Using ellipses incorrectly every single time. "Do you mean... ." does not fly under any known rule set.
- Refusing to acknowledge that, in real English, "Do you know this person?" is not synonymous with "Do you know who this person is?"
- Printing an exclamation mark, followed by a quotation mark, followed by a period. This makes the court want to stab the responsible party in the face.
The defendent is hereby sentenced to be handed over to Shun the Inattentive and his X-acto knife. And do sit down, Mr. Matlock; you're already in contempt of court.