Rules:
Be a decent person.
No racism, sexism, ableism, homophobia, transphobia, zionism/nazism, and so on.
Other Great Communities:
Be excellent to each other
Prohibition worked wonders for alcohol consumption in the US.
Been working pretty good for cannabis, heroin, cocaine, and meth too
It's not like the current state of things made people stop cigarettes either.
Ah yes, the perpetually successful prohibition technique. Because humans respond so well to nonconsensual abstinence.
I predict failure.