The poster wrote “RAD development”, which implies highly visual development environments for making client side apps eg for desktop , mobile, or web. Xft is a library that draws text and graphics. That’s what I thought the poster referred to because in the article the text rendering is pretty poor. Addressing font rendering is critical to get perfect for a RAD / visual development tool.
So I also think the poster’s statement is ambiguous.
So I also think the poster’s statement is ambiguous.