Don't be nice to people, don't display appreciation to people no matter what.

[Deleted member 685]

Yup, noticed this aswell. People respect you less the more you respect them.

 

[Deleted member 2854]

This is complex topic though. If you do this too much in a work environment you're fucked. Also you'll end up hurting already-weak people. Whenever I've been a cunt on purpose I end up upsetting genuinely nice people, which is really bad.