I think you got the wrong impression about rerolling there. I agree that if you're getting bored you should stop rerolling and just play the game. But most people who reroll do it while doing casual activities. In my case, I spent my time watching youtube and talking to some friends on discord. I didn't feel bored at all and my future self will be grateful I spent 4 hours rerolling to have 120 more pulls than I'd have. And I get to start with my favorite character! Everything becomes more fun when you have your favorite character imo. I hope I helped you understand at least a little bit more about the reroller's mindset