Just because Bitcoin is successful and the dev is anonymouse doesn't mean it is good for a coin you can see this as a evidence from all the cryptocoins.
I'm not sure if there is a relationship between having an anonymous developer and the success of a coin. Taking a look at the most popular coins: Bitcoin, Litecoin, Peercoin, and Dogecoin. Of these, the creators of Litecoin and Dogecoin are publically known while the creators of Bitcoin and Peercoin are pseudonymous.