I will also agree with you accepting makes only weaker. Nowadays, being cool in the team means troll others and joke about your mistakes or put it under the carpet. When someone agrees for mistake and apologies for doing that it gives trolls food for the next year. This post says the right thing to do from book theory. I have tried this. it doesn't work in practical terms. I want opinion from troll camp (who have done trolling others for making mistakes)