I'm guessing this particular font is unhinted assuming Cleartype, or was hinted with Cleartype in mind. I've no idea what is actually possible or not; that's j

I'm guessing this particular font is unhinted assuming Cleartype, or was hinted with Cleartype in mind. I've no idea what is actually possible or not; that's just a guess. But that page looks awful with Cleartype switched off, and kind of OK (or maybe Cleartype fans would think it looks good?) with it switched on.