[dwb]

It was sort of a joke, I’m mostly just not used to it - but also apparently it’s a pain if you forget to do it.

[janandonly]

You have to log into a website and enter your point of exit. That way whatever was subtracted form your credit can be returned to you.

It’s the same for train travel. It is an honor system because there is no way to check if that really was your exit or not.