> the PDF is not a format fit for sharing, discussing, and reading on the web. PDFs are (mostly) static, 2-dimensional and non-actionable objects. It is not a stretch to say that a PDF is merely a digital photograph of a piece of paper. It is too far a stretch, murdering the poor subject: PDFs are the best format available for long-term information, such as research papers. They have the advantages of digital data: S…
Being sent a PDF of an academic paper to read (or do anything with other than send it to a printer) is about ten times lower on the user preference scale than having someone send a link to a blog post on the same subject. (The other reason for that being that when people are in the mode that involves writing an academic paper, they forget how to write anything that anyone would actually want to read. Most academic writing sucks.)
Of the properties you listed that PDF does share with self-contained HTML, on the other hand, there isn't one that PDF isn't worse at—not even "transmittable". (Initially I would have put them on the same level there, but of course that's wrong. When you're in an environment where for whatever reason a file copy is not an option, PDF's binary format makes it harder to transmit the bytestream than HTML.)
Who cares if a PDF looks the same everywhere if that means everyone who encounters it bounces away rather than having to slog through any attempt to actually read it?