See after just having through 3 rounds of recruiting over the past three years, I don't think the ghosting is intentional from most companies. I would say 60% of companies give a "not continuing" response after 1-2 months from application, while ~25% seem like they have a configuration/software mistake that causes it to send the rejection 6 months - a year later, which people in the meantime think was just ghosting. Not sure why this is so common