"We change font size on Chrome and now all you can see on Firefox is the letter F."
They're doing something funky. They can call it a "2016 website" but the problems described in the article don't really make sense to me as anything but design-related. Now, I know that you can't design your way out of every problem, but if they're going to use IE6 as a hellmouth and not IE8, they may be using a greater number of bad practices than necessary.