Among the kinds of people who use HN, I am probably more selective than most about technology I allow into my home, but I think this philosophy is a bit broken. The idea that we should "keep the good tech" and "reject the bad tech" implies that we somehow know which technologies are good and bad before those technologies are deployed. Sometimes we can take a good guess, but other times we can't. Nobody has a crystal ball, and you can't put every genie back into its lamp.