It’s not necessarily about making the game more difficult, rather it’s about making it the right difficulty for that player. When I was playing through my Nuzlocke Challenge, it wasn’t just about making the game more difficult. It was about making it feel new again. It was about changing the Pokémon experience entirely. While there should certainly be self-imposed ways to make a game more difficult, maybe there should also be self-imposed ways of making a game easier as well.