Those terrible marijuana "cravings"

This is so misguided.

In the US, more people seek treatment for marijuana abuse than for abuse of cocaine or heroin. However, there are no approved treatments for marijuana addiction.

That's because there's no such thing as marijuana addiction. As someone who smoked for years and stopped for years, I can assure you there was no withdrawal, no period of discomfort when I stopped smoking marijuana. It was a day like any other. Marijuana is something you simply stop if and when you feel like doing so. It isn't addictive at all.

Later in the article it finally says this:

The large number of people seeking help for marijuana addiction could reflect the fact that the law requires people arrested for drug crimes to seek such help.

Ya think?