> It's like a dozen paragraphs, forming one complete argument. Is this too much material to take in all at once, in this brave new TLDR tomorrow?

The issue is not that you cited a dozen-paragraph argument, it's that you inlined all the text directly into a series of comments instead of a link to the text on a separate page. It visually overwhelms the discussion thread and is disruptive to the broader discussion, which is not strictly against guidelines but generally seen as non-normative behavior.