Interesting. I get it, but I've never done this myself (or the had the reverse, someone send one to me).
I think it's interesting just how quickly the power dynamics of "work" change. We can shift from companies throwing money at people to sit around, people working 3 or 4 remote jobs (eventually getting fired, but finding new ones), and ghosting interviews or their first-day-of-work, to people claiming it's a "rough job market" or having to write thank you notes for getting an interview...in a matter of years.
The tech job market is a strange place.