There will always be drugs that idoits will abuse, while biased tabloids will make these drugs out to be the devil incarnet. Taking drugs and abusing them are two very diffrent things. Obviously there are some drugs its just common sence to never go near, but most are far less damaging and pose far less health risks then smoking and drinking.
http://www.udel.edu/chem/theopold/chem465/copland.udel.edu/~rmarcus/drug%20chart.gif
Mephedrone will be around ecstasy, as you can see, it's nowhere near as bad as drinking or smoking. Also ignore "street Methadone" Because of the spelling its probably something diffrent, and if somethings "street" that tends to mean its been cut [got other things mixed in], hence why me and my friends only ever get it from factorys.
Also, the artical is pile of poop, just plain terrible jornalism, it never mentions wether he was drinking aswell (something I STRONGLY recommend never doing alot of when taking anphetamines.)I'd asumme he would be drinking if he's at a party. It dosn't mention how he took it, something VERY importent when dealing with the danger of drugs. "Mephedrone can be bought for as little as $10 in the UK" That quote is a pile of bull (asumming it means $10 a gram), thats about £4-5, it costs £15 off dealers, £10 if you pick it up from an actual factory. Also its from the Daily Mail, a terrible newspaper, thats well known over here for spreading hate, exagerating any facts that agree with them and ignoring any that don't.
Also, they jumped the 'get Mass Effect banned because of the nudity' bandwagon.