It’s also a simple signal that you are still interested in the job. You’d certainly never send one of you weren’t. From the hirer’s perspective, it makes their job easier by not calling someone and having them turn it down.
This assumes that a hiring manager would choose not to call a favored candidate just because they didn’t get a thank you. That would be insane to me. None of my top performers sent me thank yous, and if I passed on them for that reason alone, I would deserve the dregs who would take their place.
It’s also a simple signal that you are still interested in the job. You’d certainly never send one of you weren’t. From the hirer’s perspective, it makes their job easier by not calling someone and having them turn it down.
This assumes that a hiring manager would choose not to call a favored candidate just because they didn’t get a thank you. That would be insane to me. None of my top performers sent me thank yous, and if I passed on them for that reason alone, I would deserve the dregs who would take their place.