Because Lucia edits mainly romance and women's fiction, some of her points are specific to those genres, but there's a lot of universal truth to what she has to say. Here's my favorite:
Stop overthinking! Because here is what I’m not thinking about: your formatting (just double space and have page numbers and we’re good to go); shifting pov (if it’s jarring, it’s wrong; if it’s not jarring, I don’t care); your font (just don’t use this); the number of times your characters have sexytimes (make it right for the plot); the ‘dark moment’ (I don’t even know what that means); what your betareader (don’t know what that means either) says.
Notice that these are not really "pet peeves" at all; they're suggestions for how you as the writer can find more success.
Which of these do you need to paste to your computer monitor?