I do realize how ugly PDFs are to work with (I wrote my own PDF/A generator for issue 2[2]). This is a Tagged PDF though, so you can extract text using standard tools.
To understand the mindset, have a read of the Gemini FAQ[0], specifically the answer to why not use a subset of HTML - and then read Issue 2[2] which is a hybrid Gemini+PDF polyglot, for people who don't like reading PDFs, which is apparently everyone on this thread :)
Issue 1[1] also moves beyond PDF, to try addressing some of the accessibility shortcomings by (a) prepending the content as plain text, and (b) recording myself reading the whole thing out and arranging the file as a polyglot MP3 and PDF file that can be played in an audio player as well as viewed in a PDF reader as well as a text editor.
A mini-FAQ to address some points elsewhere in the thread:
* No, it's not going to replace your blog or the web in general.
* Yes, it's an experimental art project / longitudinal CTF forensics tournament / weirdo personal blog.
* Yes, I'm serious anyway.