Board Thread:Support Requests - Designing Your Wikia/@comment-24661007-20140509154510/@comment-856287-20140509174649

This is a known bug in Chrome; it's not the font, it's chrome's rendering of the font. This will (probably) happen with every font you try to use in Chrome.

One simple solution is to apply a slight text shadow, forcing Chrome to properly apply anti-aliasing:

text-shadow: 0 1px 0 rgba(0,0,0,0.01);

Until the bug it fixed, there's not much else you can do (except apply even more complex hacks to force proper anti-aliasing).