When a site like kernel.org goes online with a broken font, something must be fundamentally wrong in the world of programmers and people generating content for displays. What would be the situation like, if we were printing millions of books with 20 dpi technology? Would this be ignored by the masses and people who are annoyed by the eye-hurting results would be trolls?
We should see this as a clear (cough) signal, that it is time to start some major broken-font-campaign - more and more web developers seem to be so overloaded with CSS and JS framework learning, they totally forget about the most basic things - IMHO it is still the first and most noble duty of a real webdev to make a site nicely readable on all displays.
This annoying font-disease must be taken very seriously - it is ignoring the most important aspects of life: health. I feel offended if somebody forces me to read a website with such a broken font - it hurts my eyes, and as a computer guy I need my eyes for work, so it is a serious attack.
I was humbly accepting it as a personal disability for years, that I needed WinXP fonts on every Linux distro to have a satisfying font display. But I kept wondering about how the creators of thousands of Linux tutorial screenshots could not realize that they were looking at a broken font and destroying the functionality of their most important input devices.
Luckily in the last years it got much better on Linux, but then came the iFlood, Win7, and finally the ultimate weapon of ophthalmologists for generating an endless income stream: webfonts.
Now I am confronted every single day with websites with broken fonts. This is a serious regression and every web designer and every programmer involved in font rendering code should stop working on anything else until this problem is fixed.
Yes, I know there are many reasons for this problem, it is not only the web developers - anyway, please let us fix it now.
It would be nice if the people who encounter these text-rendering problems mention what setup they use.
The reason I didn't mention my hardware at first is because nobody ever gives a damn about typography. I've tested these bugs cross-platform often enough, but nobody ever replies, so I stopped doing that.
Also every web designer that is not testing stuff on the 10 most used system configurations of the world will have a very bad time in hell and will receive some extra eternities for prolonged torture.
Web designers must develop more interest in making the text readable everywhere. Underlying technical problems are well known to the "community" and should be solved.