This isn't just a characteristic of the tech community, but people in general. People who don't know or understand something, companies who aren't selling life improving substantial products, and those without confidence need to resort to the fine art of bullshit to make them feel more confident in whatever snake oil they're trying to sell. When you don't have the goods, it's much easier and beneficial to you to add the fluff. It sucks, but it isn't going away. :(