I'd be glad to include caffeine in the list of substances too, this anti-promotion rule is not a ban on mentioning them. As many others have pointed out, certain substances have positive effects, in fact I'd say all of them have positive effects one way or another, whether medically or not. That's why I think having positive effects is not a reason to exclude a substance from the list.
I've transferred the community to GrainEater and left the mod team, I will now apply for mod again.
Here are some reasons why I want to be mod:
Here are some reasons why I might not be suitable for mod: