If a boss messages me on my day off or after hours they will not get a response until I show up for my next shift when I'll respond through work email. If you want me on call you need to pay me to be on call. If you expect me to communicate with you through my personal phone you can help subsidize the cost of my phone plan.

i don't get how any of that is unethical, as the writer claims. if a candidate is too dense to send a thank you note or too self absorbed to offer to remove their own coffee or water cup after the interview, who needs them. the dropped wrapper thing is kind of weird, but it's the employer's imperitive, imo