When you look at the Arabic example, you will notice that the characters do go from top right to bottom left. This is how I am told Arabic looks like when a "proper" font is used.
Santhosh is enthusiastic about ttfautohint; he pointed it out to me. When you watch the video, you will learn that a sum of $ 30K is needed to improve the system. They are looking for the full funding by October first.
This is the kind of investment that will lift the look and feel of all of the Internet. It is open source. It plays nice with the development of the MediaWiki WebFonts extension. It is something that any chapter flush with cash can support. When a chapter like the English chapter has given their excess cash to the WMF, it is likely that they may consider such a request from the English chapter positively.