Having a DL Magic Key and seeing weekend reservations book up weeks in advance, requiring significant advance planning or the 11pm refresh lottery the night before as people cancel their reservations.
Not being able to room charge using mobile order. I want my Disney Inspire Visa credits.
Possibly a hot button topic, but the CMs at times aggressively yelling "fill in all available space" even when people have generally done so already. I find it especially irritating given Disney's own Accessibility Guide suggests that you encourage members of your party to help form space around you in line if you are neurodivergent and may need extra space. I have a neurodivergent son and we do not utilize
DAS, so this one maybe hits close to home.
At counter service restaurants during busy times, when the tables are all full, people who stake out their table before receiving their food. It results in poor guests wandering around with trays of food getting cold while people chill at the tables. No issue with it when the restaurants aren't busy. Same with people who sit at tables for a long time after they finish their food and see people struggling to find somewhere to sit. Yes, it is your right to sit there, but helping your fellow park guests by moving along is just courtesy. I get this is a mixed one as people may have a genuine need to sit for a bit, but at least at DL with all the APs, I've seen people working with their laptops while people wander around with their trays. (I wish there were more air conditioned places to relax at the parks, but I digress.)