I always thought it was supposed to be better to spread your information as widely as possible so people can familiarize themselves with your product resulting

I always thought it was supposed to be better to spread your information as widely as possible so people can familiarize themselves with your product resulting in potential future sales. That makes a lot of sense - if you're building a software platform. If you're building a chip, it makes sense to be the first mover on the cutting edge. By obscuring specs, your competitors won't know what specs are the most valuable to your customers. That sort of thing is critically important to semiconductor business.