Agreed. Im an mr28, almost 29, and can say i definitely just do it for the fun of it. I know plenty of low mr players that regularly do better than others closer or higher than me. There should be a system to keep less experienced players from accidentally blowing up their warframes with helminth, but not mr. Maybe a checklist system, like they have for the rails. Defeat a lich, clear war within, 90% node completion, etc
Smart people: "wow this looks awesome, just think of all the powerful combinations!" People who forget warframe is a pve game about feeling powerful while you slaughter thousands of enemies: "pls nerf, it's too strong, just think of all the powerful combinations!"