As someone who had never even heard of CoC or ISoCF until a few years ago, I am one of the ones who read an improper pdf version that I found on the internet. I'm not bragging about it as I know it wasn't a great thing to do, but I had given up on being able to find a legitimate copy for a reasonable price. The third hand reseller prices were exorbitant. I'm not making excuses for myself, just admitting what I did and explaining why.
All that said, however, I am very happy to hear that a new edition is being published and I absolutely intend on purchasing a legitimate copy.