The site mentions about calling out companies who ghost candidates too, so I am offering my view from the employer's perspective. The hiring managers could be interviewing dozens if not hundreds of candidates - sometimes they are genuinely busy and they literally cannot spend countless hours to respond to every candidate they've spoken to tell them "No, we've passed on you".

Ghosting also happens in both way - as a hiring manager, I've had a many times where I had to reach out to the candidate patiently waiting for their response to the next round or getting back to me for a coding exercise with no response (the bad ones) or a "sorry, I forgot to tell you that I got the job already."

Finding a job is a lot like dating, it takes 2 parties to make it work. So just like ghosting in dating scene, ghosting in hiring process will always exist, it's not a technology problem but it's a human behavior problem. By the way, anonymously calling out the other party of ghosting is even worse IMO.