Yes, thank you for saying this. I feel that you may be lucky to have only encountered 3 of these...even if on reflection I’ve only encountered an obvious 2.

Let me add that I enjoy teaching folks, that I enjoy being a multiplier even if it means I won’t be an additive. I am also an apologist, and willing to believe that people are adding important ingredients to a team or output that aren’t immediately obvious or visible.

But -x folks exist.

Unfortunately the -x folks often DO have significant skills at hiding their negative impact.