Regarding the ranking: This post is currently #1 on the front page.

It was posted around 08:00 UTC. In my experience it is generally very hard to get traction for a post that is posted before ~14:00 UTC. This is a site with lots of US users, and it’s still early on the west coast (07:18 PDT).

This post managed to climb to the top despite that, probably because Zoom is a company that is interesting to techies, the article is from a well-regarded news source (at least in this crowd), it covers misleading marketing, it’s a bit related to Covid-19 and it also touches the topic of E2EE.