Papers should be immutable, blogs bit rot, and anonymous peer review is important.
The million dollar question is why don't researchers publish on journals that don't charge outrageous open-access fees. Here the main problemis that carreer advancement is predicated on publishing in prestigious venues. Such venues take advantage of that by jacking their price. Fixing this will require cooperation from governments, which have leverage on both sides of the equation: they can help fund alternative paper repositories, and they are ultimately responsible for the rating criteria of what venues are prestigious and how research grants get awarded.
The million dollar question is why don't researchers publish on journals that don't charge outrageous open-access fees. Here the main problemis that carreer advancement is predicated on publishing in prestigious venues. Such venues take advantage of that by jacking their price. Fixing this will require cooperation from governments, which have leverage on both sides of the equation: they can help fund alternative paper repositories, and they are ultimately responsible for the rating criteria of what venues are prestigious and how research grants get awarded.