Completely dead NeurIPS review period from both ends? [D]

I’ve seen a lot of people whose reviewers went silent after initial reviews, but I am also noting abnormally quiet authors. I ultimately withdrew my paper, but stayed an active reviewer. Out of my batch of 4 papers, one withdrew, one posted a rebuttal, and two have been completely silent. Of the two papers with radio silence, I think one had borderline scores. I was also the only reviewer who responded to the one paper with a rebuttal.

Has anyone noticed this abnormally dead review period or did I just get a strange batch? I’m seeing either reviewers just dropping out of the review process or authors completely checking out after initial reviews are released. It’s strange to me to not even withdraw your paper if you’re not rebutting. Is this a new gambling trend of just submitting papers everywhere, and not even sticking around long enough to withdraw the paper?