Post was by "Sirini", could that be short for "Shankar Srinivasan, COO and Co-Founder"[1]

[1] http://www.getinsured.com/answers/our-team/

Edit: Nope, probably their product manager: http://www.linkedin.com/in/srinidhanam

Putting it together with dangrossman's link to https://github.com/CMSgov/healthcare.gov, could be a private site written using some gov.* code from GitHub.