Why? Just because of the amount, a mere number? That would come to 450-600 mg which is just about a 3rd level trip for a skinny person, certainly too much for beginners but otherwise not that dangerous. People, try to grasp that stuff like saying "eating 10 hits of acid gave me a normal trip" doesn't mean anything if you don't know the dose. Yes there are averages but they still give no guarantee at all. If someone eats 10 XTC pills, chances are it's a bit excessive but you don't know unless you know the dosage...
How about a DXM poll about if you like the drug in general and if you don't if it's because of body load or just absence of interesting or pleasurable effects? Some say only like 1/3 of the people really dig it, I'm interested how true this is... to me it certainly seems uncommon to like it (i.e. have cool and crazy experiences minus the bad body load).
And, regarding stimulation of drug use...
It is like asking if a liberal policy works, i find there is enough evidence to say that it does: look around the world, telling ppl just not to use drugs like in the US just doesn't work. All this constructive talk on BL about psychedelics and other more conventional substances may give the idea that it increases drug use but it's probably not true. I actually think it's a little weird, but legalizing something like weed in the Netherlands doesn't get more people to use it. Some will because they don't have to get into illegal circuits but others don't anymore because it's not as cool or interesting.
The main point is that people should be able to choose for themselves if they want to use a substance, dangerous or not. Open discussion and harm reduction will at least improve the safety when they decide to go ahead and use.
I see people talking about using very obscure drugs here on BL, PD at least, and sometimes combining massive combinations and doses. Very often I wouldn't say it's done as responsible as possible but it still beats shutting up about it and letting people get their information from their dealers (!)