I wonder the same. Just started my adventure with Codewars and almost always the msot voted is the shortest code. I learned to do everything step by step (of course with some shortcuts) and it's extremely difficult for me to understand what's going on in the one-liners. It just takes up too much time to see what the code does, but maybe I'm just not experienced enough.

I am just wondering if this type of 'all code on one line' approach is common among python users. When I look at other people's code (most of my life), I definitely appreciate things being pulled apart thoroughly so that what each line does is extremely trivial. I don't know it just took me a long time to understand what was happening in these examples.