Drug use... hmm. I'll eventually be putting this in the "Clarifications" thread as well, so here goes.
Drugs and their use are perfectly valid subject matter for creative material. People DO use drugs in the real world, and there's no reason why narrative (or other creative output) shouldn't be able to explore that part of human nature. There is a definite line between drug use taking place, and material designed specifically to promote drug use. Promotion of drug use is explicitly forbidden. That doesn't mean you have to make every story into an after school special or anything, but rather that you can't post instructional materials for creating, obtaining, or using drugs or drug paraphernalia. Can you show a character shooting up or doing a bong hit? Yes, if it's part of a legitimate story, and not just a ploy to circumvent the restrictions here. This is a lot like the ruling on porn/sexual content. If sex or nudity comes about in a story or comic, that's fine, but if sex/nudity is the focus of the content, then that makes it porn. Likewise, if drugs come up in context, that's okay, but drugs should not be the focus of the content.
Now, as to your application. Looks pretty good, but I'm gonna give it a few days to get more opinions.