StartSSL at least have a human in the loop for your initial identity validation. They got in touch with me because I'd put a work address in instead of my home address, and they worked it out and sent me a very human-like email asking me to correct it.
I got also an email from a guy because my domain name had been registered that same day, telling me to wait, sure you can automate the check, but at least the email didn't look automated.
