Former San Mateo County Times executive editor John Bowman, who abruptly quit the MediaNews Group-owned paper in disgust last year, has become a real estate agent. “I’m not a journalist anymore; I’m a Realtor. For 31 years, I would have laughed if you had predicted I would someday utter those words. But someday has arrived,” Bowman wrote on his blog, where he has been criticizing MediaNews since leaving the Times.