Boss lady likes to keep the perception that its a clean and proper shop. Doesnt want outside trouble. Plus when people start writing crazy details it attracts the bad clients she doesn't want. Also other idiot clients read that, think they'll get the same level of service and keep asking her about that stuff and start complaining to the boss when they don't get that level of service, which causes unnecessary headaches.
Pretty sure the girls dont like it because some feel it sets a bad name for them, when they're truly YMMV. Other idiot customers come into the room and start pushing or demanding for the same service. When they are disgusting as fuk to the girl. Then she's gotta deal with that headache and bullshit.
I also dont write detailed shit anymore and keep things general as i know 80-90% of people arent getting the same level of service so there's no point.