Open source projects
Quite a lot of my workday as maintainer of an open source project could be classed as diplomacy / expectation management.
It can be pretty exhausting but it's very necessary, as long as people are writing code rather than robots.
It's also great when it works to bring peoe together on the same page, to do cool or fun stuff. Not that it always succeeds!
A quiet single user instance for dctrud.