Well, the website was exactly opposite to the current one a couple of weeks back. Earlier, we had lots of technology description on the site and a very prominent product tour. After getting feedback from the target market (small-middle sized B2B and B2C publishers and marketing consultants/agencies), we realized that technology means absolutely nothing to them. In fact, it was scaring them off because of the perceived complexity of the product. So we put away all the tech stuff deep in the website and talk in simple terms on the most frequented pages.
Your point on credibility is extremely valid. I cannot agree more how important is to have a proper privacy policy and terms and conditions, especially in online advertising market. We are working on it and it should be on the site soon. Do you think making 'Get Started Now!' subdued can make it look more credible?