Carl Medford, a San Francisco Bay Area real estate agent, spent considerable time and effort over the years successfully nudging past clients to post reviews on his Trulia profile. That’s why his blood is boiling. Sixty-eight of the 92 reviews his agent team accumulated on Trulia and Zillow have vanished from Trulia as a result of Zillow’s recent consolidation of Trulia and Zillow agent profiles, he claims …