Since we are giving examples, people do "gimp" themselves to have fun and challenge themselves. For Legend of Zelda, there are people who do 3 heart challenges. For Resident Evil 4, there was one person who posted a guide where you aren't allowed to use a single gun. The only weapons allowed were the knife and grenades. For Diablo 2, I did a challenge as sorceress where I used nothing but Icebolt (for Normal difficulty) and Charged Bolt (for Nightmare difficulty because the enemies regen their health too fast for Icebolt to work)
In real life, when you've plateaued on a jogging route, you ramp up the challenge by "gimping" yourself, trying to finish it in less time, giving yourself less rest breaks, adding distance by retracing your path, etc. You don't go demanding to city hall to retweak the sidewalk so that it's more challenging for you.
It's one thing to actually rebalance, changing some numbers, but it's another thing to ask the devs to tear down the games, create new mechanics just so you feel more challenged.
