This forum is almost unreadable on a GNU/Linux based system as in both Firefox and Chrome the Montserrat font is rendered extremly thin. I might miss the proper hints or what ever.
The sollution is to override the font with something legible, like DejaVu Sans. Luckily it is set in the body tag so it can be reset easily with a plugin like Custom CSS for firefox or Custom CSS by Denis on chrome browsers. The code to set is
I probably missed out a view.