Drugs are dangerous. You have no idea where they've been or what they're cut with. You also have no idea what possible long term effects they could have, since "research" doesn't go back far enough.
It's also stupid to spend money on something you don't need, but which could **** your life and future up if you were caught. Drugs are for idiots. End of.
'Proportionality' is, I think, the operative term here; where drugs are concerned, it's also a subjective one.
I gotta say, NeverMindThat seems to be destroying everyone here. As people against it's use, the onus is on those opposing NeverMindThat to provide evidence (actual evidence, not newspaper articles) of it's brain-destroying tendencies, which has been lacking so far. He has continued this debate in a formal and well versed fashion, something that cannot be said for everyone against him, so, from a person who entered this debate with an open and neutral mindset, NMT is kicking arse here.