For better or worse, it's really easy to get both small and large (i.e., very large -- hundreds of people) video calls going, and it possibly has the best cross-platform support out of every option available right now.
Oh that's unfortunate. It was a post providing proof & explaining that Zoom engineers set up an internal website to monitor certain people's zoom meetings, specifically women who were doing sexual things. I wonder why it got removed, it provided DNS registrar history evidence so it wasn't just hearsay.