Here is my story from a slightly different angle. I really like code-challenges sites. I've used them a lot (and: a lot of them ;)) when I was learning Python, and some of them when I started with Nim, here is the list from the top of my head:
* Checkio * Codewars * Hackerrank * Exercism * Empire of code * Advent of Code Probably some more, but I forgot. What I'm sure of is: Project Euler is not on that list. I had a look at it several times, but it never really attracted me. I've read some of the tasks and they felt so boring. So the small number of Nim users of Project Euler is really no surprise to me.
