Some supported languages doesn't have proper font

Many supported languages (Russian, Bulgarian, Belarusian, Macedonian, Serbian, Ukrainian and some others) have no default font variant, causing it to get rendered with the unicode font, even if it's not enabled, making it look really awkward. Take a look: http://i.imgur.com/M3EekXD.png

1. Those languages text render looks terrible compared to English font.
2. It doesn't fit with dots, commas and other punctuation due its font-weight.
3. §k and §l formatting doesn't work well with these languages