The set of people who visit a car forum is very different to the set of people who need to buy tires for their car. If you want to increase awareness of your i

The set of people who visit a car forum is very different to the set of people who need to buy tires for their car. If you want to increase awareness of your innovation, you might want to target exactly those people who aren't car hobbyists and don't visit car forums. Same if you are selling a product specifically designed to be easy to use for non-experts.