I too have caused and authored many COEs at Amazon. I have also been involved in 50 to 100 COEs written by other teams and have also observed no instances of th

I too have caused and authored many COEs at Amazon. I have also been involved in 50 to 100 COEs written by other teams and have also observed no instances of this having a negative impact on anyones career. COEs are core to Amazon's learning experience and you can be assigned to write one for simply being unlucky enough to be oncall when the incident occurred.