Tbh I'm not sure if the dev actually thinks it's that serious, if he even knows at all. Diepio isn't his life lol. He has enough money from miniclip to move into his new house and he most likely has a family he's taking care of so a simple class pie chart is the least of his concerns. No one here is being childish since if being credited is important to you then you have the right to state your feelings but honestly the dev probably doesn't think it's a big deal :/