He's abrasive, true, but often has a point. See e.g. "The Blocking Consumer" part in "The Case Against Queues" (http://teddziuba.com/2011/02/the-case-against-queues.html) and "Stupid Unix Tricks: Workflow Control with GNU Make" (http://teddziuba.com/2011/02/stupid-unix-tricks-workflow-con...).