for the article's author: try this before choosing a font, PLEASE: https://browserlab.adobe.com/ (yeah, it needs an adobe account that you can make in 2min, with no cc, but it's free if you don't exceed a daily usage quota)
...not everybody is using safari on a mac (and I eagerly await the days when people will start using fonts that are only readable on safari on a mac with retina display...)
I actually checked it in Xombrero on OpenBSD with no issue. To be honest, I hadn't expected anyone to read the article outside of people in the IRC channel, where practically no one is running Windows.
More like Windows' bad rendering. It looks fine in my Chrome on OS X. A bit of a lame font but readable and not all flaky like the Windows screenshot linked by the original commenter.
It's more historical at this point. Chrome doesn't use DirectWrite because it uses Skia on Windows. At the time, the choice was between GDI+ and Skia, and Skia was much faster. But DirectWrite on Vista and 7 is extremely fast (it's GPU-accelerated, unlike the Skia backend Chrome uses).
http://i.imgur.com/x8kqM.png
Windows 7, Chrome 24.0.1312.2 dev-m