Like Duk, he's an enigma. Although I think, possibly, that Youan's ceiling is probably higher given his attributes. Both have huge question marks over whether they'll actually make it or not, with both probably pointing towards not at the moment. Hibs should probably take any money they can get (I'd heard £2M, which will have gained forum based inflation). I don't think that they'll be in a position next season to gamble on a guy maybe turning good (like we weren't this season with Duk, albeit Duk was coming off the back of a good season). I can see why clubs of a certain size would take a punt on Youan though, whether they'll be willing to spend the time and money on working out his flaws is an aside.
Edit: of course, now that they're part of a "group", it could just be a case of shifting players and money for tax and fair play purposes.