You know, reading the various devs' tweets, they use twitter in a way that is completely foreign to me. Is there anything these guys think that they don't tweet? ("Hey, who's picking me up from the hotel?" is not something I'd ever announce to the world at large.)
This incident shows a danger of working that way--one of these guys apparently had a rude little thought best kept private--and let's admit it, we all have those thoughts at one time or another. But because he tweets everything, that little passing thought was pushed to the world, which is not good for anyone involved.