Is Scott implying that some managers withhold positive reinforcement to avoid making them too needy?
Btw, criticism of bad behavior is also technically positive reinforcement since you are providing a response to the stimulus of the behavior. Negative reinforcement would be like the removal of a reward or a response to their behavior.
After reading a lot of unnecessary comments form Plasma, I don't like his attitude ant more than you do, but stating that he should stop doesn't work so I'm ignoring it and you should try too, because you can't fight him by being angry and fueling his need of attention.
After many comments this one actually makes sense because not everybody might understand deliverables and most people will just skip to the next strip without understanding it.