Heaven to you, hair on my donut = gross to me! I'll just have mine cold or nuke it a few secs!
Crockpots are not supplied for the DVC kitchenettes but toasters are. Unattended cooking in a small space - not sure I would feel safe with that as the kitchenettes are very small - not a lot of space and cabinets or shelves above. Not sure what Disney says as I've never seen any written rule about it. I've never used a crockpot on vacation myself.
So this could be a whole new discussion. I stay in this type of room and often bring my Keurig but never use a crockpot.
I don't remember seeing gfci outlets in the older kitchenettes. They could be, but I honestly don't remember. I have however upgraded in my own older home, both kitchen and bathroom.
Many years ago, my ex was a volunteer fireman (in addition to his regular job). He was very much into community service. The fire alarm would ring in our house and off he would go. Source of several fires - hairdryers left plugged in. I can still remember driving by the charred homes and being thankful everyone lived.
So, my take on fire safety is it's not so much that you use an appliance; it is that you use it carefully and unplug stuff that can start fires, and don't leave an appliance cooking and unattended - anywhere.