A brief history of B&A: He first appeared on the RW forum a few years ago. He was an arrogant douche that repeatedly told us we were wrong, explained why Pose was better, then shamelessly peddled his coaching services.
Now he's a FAR less arrogant and douchey, actually listens to other opinions, acknowledges Pose's significant limitations, and I haven't seen him mention his coaching for a long, long time. Though I've never met him in person, I think he's a pretty cool dude. He's taught me quite a bit over the years. We give each other crap all the time, but it's all in good fun. It is a carry-over from the RW forums... it's just what we do. He's actually one of the few people I've met that really understands running form from multiple modalities.