Except that he has not contributed since 2013.  There are only two contributors since then.  One of them is some guy who made 5 commits yesterday (long after the hype began) and the rest are from the GitHub ChainCoin account itself.  The changes done by the ChainCoin account are mostly secretarial in nature.  The five changes made by Harris Brakmić may have some relevance but again it's five changes that were made just yesterday.  The only way this coin continues to flourish is if the buying draws developers to support this project.