Technology giveth and taketh away, that was the essential gist of this year's SXSW Interactive, the premiere intellectual gathering of the world's technological community. One might expect such a conference-slash-festival to merely proselytize about the marvels of modern tech, and that it does, but the dangers don't get a free pass. That became crystal clear on day one when Interactive's first hot-ticket panel was "It's Reddit's Web. We Just Live In It." The message-board website, dubbed "the future of the Internet" and powerful enough to kill the censorious SOPA bill and attract even President Obama to its famed "Ask Me Anything" Q&As, was savaged as a bastion of bigotry, sexism and racism.