Right, and the point was that personal observations and impressions are a really poor way to judge the internal thoughts, feelings and motivations of random strangers. I.e. that nobody could possibly come to this determination in any robust way.

Moreover, it's exactly the kind of conclusion that suffers from common biases, and that we should be inherently skeptical of.

It's really not, it's basic psychology. People rarely change their opinions based on evidence.

Having said that, in 50 years on this planet and countless interactions with government employees, I haven't had a single bad one. I do try to be kind and accommodating because I know their jobs are often shit and they have to deal with asshats all day long, and maybe that has an impact on how they treat me.