Guild Wars 2

Does the game support quick disabling?

For example: If you find an item, enemy, trait or ability not working as intended, either not doing anything or doing too much; are there systems placed that allows you to easily go in and disable said thing without affecting other aspects?

Well they disabled both the guardian and engineer traits pretty when the new trait system came out.

What simple said, so they probably can disable items/the rest of your list pretty fast.

Nightmare.8351:

What simple said, so they probably can disable items/the rest of your list pretty fast.

I’m not entirely sure if it’s true or not.

Without patching, they can disable certain functions. Pretty much anything that requires approval from the server can theoretically be disabled. Generally, they disable content by replacing its function with a message stating that the content has been disabled. See the HoM for example. In the past, they’ve disabled things like vendors, NPCs, items, interactable objects, events, maps and servers. It is generally a game wide change however until a proper fix is released. Due to the way GW2 is updated, they’re also capable of pushing a change live much faster when compared to other MMOs.