This is a pretty self-selecting group, so I'm not surprised that most people reading this don't have a problem with after-hours coms. If you've ever worked in hospitality or retail, you'll know that managers will call/contact you at all hours to make sure they have coverage. It's irritating.

> Maybe I just have abnormal leverage

It could also be a personality thing or a worldview thing.

Some people just have a hard time saying "no" in general, or are constantly looking for reasons to jump at shadows.

Or there's people teaching that the world runs on class warfare and anyone with any amount of power is always looking for an excuse to abuse that power.

You probably have been just lucky with your bosses?

Slack also works on weekends and at the AM

Your fortunate. If you’re adjacent to operations or power, after hours comms is a common experience.

As an employer (in the US) I have always had the impression that I'd risk being on the hook for overtime or some other form of additional compensation if I routinely engaged in communication with employees out of hours, so unless the place was on fire I never did. As an "employee" (contractor) I managed my own hours and adopted a pragmatic approach: if the client was paying $$$ I'd respond if it didn't interfere with my personal life, unless they were being dickish about it, in which case I'd bring it up as an issue and if necessary drop the client.