It depends of what kind of communication, for example for a developer it is really important to communicate any problems or issues at every stage of the project that is really important, also to express any problems that he might have at the start of a project or something like that but if your ex-boss were talking about talking and socializing with everyone everyday at every hour that would be just stupid, I've found that the people who does that a lot doesn't get the job done. It is ok to talk and joke with your co-workers but to speak all the time and doing just social stuff won't get you anywhere to complete any work at all.