Angel investors like their privacy. They don't want to be bombarded with hundreds of investment requests, and so they are usually pretty low profile people. I know angels that have done dozens of investments and no one has heard of them. They don't have a web site, a blog, and they don't write articles in magazines that will bring attention to them and their wealth, and bring with that attention an unwanted rush of entrepreneurs knocking on their door.
So FundingUtah.com protects the privacy of investors.