I imagine that there are a lot of really disappointed stoners trying to figure out what the fuck this article is about. A weed vaporizer is — as a simple Google search will tell you — a device for smoking pot. This eHow “author” has managed to come up with some ridiculous article about a vinegar concoction that will vaporize your garden weeds.
This reminds me of the time Otto visits Stoner’s Pot Palace on The Simpsons. Flagrant false advertising.