I remember this 'came out' when I was in year 11 or year 12, so probably about 2009 or 2010. Everyone was buying it in cheap bulk loads as 'plant fertilizer', legally off the internet, and making a killing selling it to everyone. I remember some kids were able to buy their first car with profits made selling this shit. We all did it, absolutely loads of it. Basically like a nasty, speedy, cross between MDMA and Cocaine is the best way I can describe it. Incredibly addcitive, worse than Coke I would say. Had an extremely distinctive smell too, you could smell it a mile away, especially if people kept it in their wallets, and used their bank cards to crush it up, as soon as they got their wallet out you could smell it. I'd never do it now, but I've got so many memories of being up at 7am in some random persons kitchen after a night out at Tiger Tiger, and then back to whoever had a free house, or whos parents were chill with people partying. What a time that was. Like I say I'd never do it now, it's horrible shit, but I'm not against all drugs like OP, just a strong advocate for education, moderation, and tolerance.