This is an absolutely ridiculous thread.
You cannot grow indoors without fertilizer. Even outdoors, if you want good growth, you MUST provide a source of nutrition to your plants, be it from compost, guano, or liquid ferts.
Better quality fertilizer makes better quality pot.
The OP needs to do some reading and find better sources than 'some people who smoked pot'...
Mother Nature can't be bothered to go hunting around for pot plants to help out. There are no fertilizer fairies who magically appear and feed your plants.
THC isn't the only psychoactive chemical in pot either. By your logic, my tomatoes that I've grown with Miracle Grow should also make me paranoid.
But they just make me full, and give me canker sores if I eat too many.
This is stupid.