The author has a responsibility to out the cheaters. It's unacceptably unfair to the students in his course who didn't cheat, and cheaters should be shamed publicly and have their career prospects severely damaged. I really don't give a shit what excuses or justifications someone might have had for cheating, if you had to run away from home sleep under the bridge and suck dick for wifi after your dad killed your mom or whatever. I literally do not give one flying fuck. Cheating is not acceptable or excusable, ever, period.
I'll go further and say that if you're not ready to out cheaters in your classes, you have no business teaching
I'll go further and say that if you're not ready to out cheaters in your classes, you have no business teaching