I'm not sure where I stand on drug intervention. In principle, I believe someone should have the right to do whatever he pleases, so long as it doesn't interfere with other people. Of course, purchasing drugs always does interfere with other people, at least in some indirect way. Where does the money go, for instance? So I suppose I would be in favour of permitting the use of any drug if we could be rather sure this interference would be positive, on the whole. I don't think that's the case, but then again, I haven't given this very much thought and it's besides the point in this thread.
Now, I don't think someone is necessarily stupid for doing a drug. It depends on the drug and the circumstances; contrary to Screenor, I don't think someone who does cocaine or heroin is necessarily stupid. Very few things are black and white like that. I do, however, think the general attitude towards drugs on this forum, and the way in which they are being used, is stupid. And if that attitude becomes a defining personality trait, then I suppose it also makes you stupid, in some sense.