I had this very experience today! I was looking at some code for markdown parsers (I'm trying to build one in Hare), and I stumbled upon a Nim example. I don't know what it was, but just seeing how complex the author made what seemed like a simple struct to me filled me with dread. I'm sure if I took the time to understand the language it would make sense, but Nim is just one of those languages you need a second glance to understand if you're not already familiar with it.