Don't listen to the post from mbenga - https://bitcointalk.org/index.php?topic=400014.0

Folks, make more alt-coins. Make all you want.

The codebase is open source, so go grab it, tweak it a bit and make it unique.

I like getting a good laugh from the names of these coins, Doge, Cat, Coinyewest, etc.

Keep on creating!