Yeah, you have to filter somehow. I wrote it up in more detail [1], but to filter out the resume spammers, I ask for a brief answer to a novel question [2]. That winnowed things down that I could talk to every plausible candidate. Maybe I'd need to tune that in the era of ChatGPT; we'll see.
[1] https://williampietri.com/writing/2015/slightly-less-awful-h...
[2] e.g.: https://web.archive.org/web/20151005181908/http://www.codefo...