I finally think I discovered today why people like @ matthewfeickert could not see posts from my # Mastodon instance: I needed to add DNSs to the sidekiq and streaming docker containers. They could not, by default, map domain names to IP addresses, resulting in O(10,000) failed Sidekiq activities. I am redoing ALL of those failed requests now. Posts incoming and outgoing to my server should BALLOON in the next few hours.