Second, I noticed we're extrapolating from a tossed out measurement in "microseconds per byte" here, of extremely small payloads, probably included fixed-cost overhead of doing anything at all.

All leading up to: Is "atrocious" the right word choice here? :)

More directly: do you really think Discord rolled out a compression algorithm that does 23 KB/s for payloads in the megabytes?

Even more directly, avoiding being passive and just adopting your tone: this is atrocious analysis that glibly chooses to create obviously wrong numbers, then criticizes them as if they are real.