I disagree with the author that PDFs are a terrible format. They guarantee layout, which is very important for complex scientific presentations. Even slight differences in layout can make a complex set of equations difficult to parse. LaTeX also has a much superior word-break/hyphening algorithm to the HTML engines of browsers.
I find PDF math papers easy to browse, unlike the author. They're much easier and more organized than a website, can be easily searched and have a *proper table of contents* compared to websites. As for poorly browsable on a phone -- well I think that is irrelevant because nobody is going to read a complex technical paper in practise on a phone. They do look decent in tablets, and as for screen readers...well that's a valid point but screen readers don't work well for material with lots of equations anyway.
I applaud the author for the effort but looking at the result, I would not want to read math that way.
I find PDF math papers easy to browse, unlike the author. They're much easier and more organized than a website, can be easily searched and have a *proper table of contents* compared to websites. As for poorly browsable on a phone -- well I think that is irrelevant because nobody is going to read a complex technical paper in practise on a phone. They do look decent in tablets, and as for screen readers...well that's a valid point but screen readers don't work well for material with lots of equations anyway.
I applaud the author for the effort but looking at the result, I would not want to read math that way.