> All modern browsers and operating system employ anti-aliasing on text to some degree. Textual anti-aliasing is agnostic about whether or not your font is made

> All modern browsers and operating system employ anti-aliasing on text to some degree. Textual anti-aliasing is agnostic about whether or not your font is made up of letters and numbers or pictograms. This has the potential for negative side-effects in terms of visual quality, especially if you stack glyphs to make multicolor icons. Your icons may look blurry or misaligned. To add to this point. On normal DPI screens, aliasing often just looks blurry, and the automatic font hinting that's used on most custom fonts is A T R O C I O U S, if you disable anti-aliasing. System default fonts are usually OK and look crisp without aliasing, since they've been expensively manually-hinted, but requiring icon fonts makes it difficult for the user to use them on your site. I hate aliasing, so I hate all web fonts, not just icon fonts.