I'm not quite sure this is the best way to enable such functionality, but it's already used for some other stuff, so I'm not too worried for now.
This allows the following commands to have their usage limited to self or others:
- /effect
- /enchant
- /gamemode
- /give
- /spawnpoint
- /teleport
- /title
I envision this being useful for creative mode servers, and test servers such as test.pmmp.io.
