Also why, after flirting with the idea for one hiring cycle, I stopped asking people if they had Stack Overflow accounts. Yes, if they had one, it provided usef

Also why, after flirting with the idea for one hiring cycle, I stopped asking people if they had Stack Overflow accounts. Yes, if they had one, it provided useful information about their interests and communication ability. But it has a demographic skew that could have led me to rejecting other candidates unfairly. That said, my own presence on Github is pretty anemic, so maybe that's another form of bias!