My bigger pet peeve is when the rebar detailer takes my file and make it his. Sometimes I have to exaggerate things to make it legible to the average human eye and it may be incorrect. Another issue is them not removing things that aren’t related to the concrete.
My favorite style of detailing is when they have a separate plan for grade beams, slab bars north-south, slab bars east-west.
One thing I wish more detailers do is typical details or definitions to explain what I am looking at. Every once in a blue moon, I have to call them up and ask wtf is this?