The cost of being "nice"

The other day, a link popped up on Hacker News reviving this old Reddit post 1 in which u/flipstables shares a pretty long and honest list of things they learned as a senior engineer. I highly suggest going through it as most of the things there are pure gold. But one, seemingly mundane, item inspired me to write this chunk: Be kind to everyone. Not because it&rsquo;ll help your career (it will),…