What on earth are you talking about? Tons of other languages do type classes "the haskell way". Which is also known as "type classes". Scala doesn't have type classes, it has a close approximation.
That's a yuuuuge amount of languages that follow "Haskell"'s design! (Maybe you should start counting Haskell-to-X compilers separately to pad the number "1" a bit?)
That's just amazingly hypocritical, but I guess the tactic of "blame other people for your own behaviour to make it look like tu-quoque if they respond" hasn't gotten old for you yet?
Well enough, sir.
Idris – implicit arguments
Agda – instance arguments
OCaml – Modular implicits
:-)