For anyone who has ever run a website (primarily wordpress based) once you start to get even the slightest google rankings your blog will get slammed with comment spam. I've noticed over the years that a lot of this spam will be comments trying to sell their SEO service or web traffic. I know this is all automated from scrapebox, but you have to figure that if people have been doing it for years, it must have some sticking power. Before anyone says "just try it and find out" - i don't sell SEO services or web traffic and would just feel bad about spamming hundreds of thousands of websites like that. But back to my original inquiry because i know some of you are doing this. Does this work? Do you get any sales? Is there weight behind this?