I think it being difficult to read is entirely subjective. I don't know Haskell, and if I were to look at the code for a Haskell project I wouldn't understand it, but that doesn't mean that those who use it find it difficult to read.

After writing the majority of the compiler in MoonScript itself, and some other scripts, I've actually grown to like it and I find it perfectly readable. More readable than Lua in fact, because half of the text on my screen isn't the keyword `local` :). Try it out, if you code Lua then I think you might like it.