Just because GameSnake's a dumb shit, doesn't mean every one else on earth that's done drugs before is an idiot.
You're right. It just happens to be that people who do drugs are idiots. It might just be when they're doing them, but man, they fuck people up.
Not a very good generalization at all. What are you referring to as drugs? Also, although I certainly wouldn't encourage using it, many of the smartest mathematicians and physicists of the 20th/21st century (e.g. the smartest people on the planet) were LSD users. And yes, even
while they were using they were quite bright.
There are also so many geniuses who became alcoholic geniuses. Most highly intelligent people are extremely sensitive to various things that make it very difficult for them to cope with their reality -- so they resort to chemicals (like alcohol) as an escape. While drinking isn't good for your intelligence, I think in many cases smart people are more likely to develop serious dependencies than most others; therefore I couldn't agree less with the claim "it just happens that people who do drugs are idiots," as it seems the opposite may be true in a good portion of cases!
