Employee is told by boss to stop being chatty and friendly, she complies, rumors about her being in a bad state of mind start to rise: 'The following week, the director called me into her office and asked what was wrong".

Sometimes, doing exactly what your boss tells you is the best medicine against useless changes. 
 

Malicious compliance, what is it? And why is it so common in workplaces? Malicious compliance is a way employees can get back at their horrible bosses. It is a form of vengeance in which the workers don't do something inherently wrong. Instead, they do exactly as they are told. It is a passive-aggressive behavior in which you do exactly what you are told, while ignoring the intended outcome. This has become very common in the last few years because of some incompetent bosses who try to fix things that aren't broken. They put their nose where they aren't needed and change things that don't need to be changed. That triggers a response from overworked employees who decide to comply simply because they know it will inevitably fail. And, in the long run, that may change the way their bosses approach them.

In this Reddit story, a healthcare worker is asked to talk less, be less friendly, as –supposedly– she is not doing her work because she gets distracted with patients and other employees. That is not true, and the user knows this. That's why she complies with what she was asked. This generates a weird environment where everyone feels like she is having issues. They start to worry she may be going through a rough patch, as it extends to the boss, who originally told her to be like this, and ends up calling her to tell her to go back to normal.

This story is just another example of when bosses try to fix something that works perfectly fine. There were always good reviews about how nice the receptionist was, the workplace was harmonious, and everyone was doing their job perfectly. But no, the boss had to intervene just because she could. She did not care if it was useful advice or just micromanaging. She did it anyway, and the outcome was horrible. So maybe it's better that if everything seems to be working, leave it like that. Bosses, stop messing around when you are not needed to do anything!