I had a hand in the design of this site. The font looks ok to me on OS X but too light in IE8-10. I've upped the weight in IE. Hope that helps.
It has the same problem on Windows 7 + Chrome.
Sigh. Different font rendering engines. I made the font blacker too. I'll review it again next week. Thanks for the feedback, all.
It looks fine to me on a Nexus 4, iPad 3, 2009 Macbook Pro, and two LCD monitors. Is the issue you find the text too low contrast?
Yes. Not sure why the original commenter is being down voted, it's an accessibility nightmare as far as sufficient contrast goes. Another "Works fine for me!" from a bunch of young eyed, able bodied 30 somethings ...
Yes. The text is pale and thin making it more difficult to read than it should be.