I think it's hilarious. Pure distilled internet. I don't expect it to ever gain actual traction, but it'll stick around for a while. The internet loves a good joke.
Mark my words. 2-5 years from now this post will be linked all over the internet as they tie "cantbecool" (the OP) to the Dread Doge Shiberts and arrest him.
It's just the viral nature of the internet, especially a meme. I spoke a to a few people that have no idea about Bitcoin, but they knew of Dogecoin and the meme. Plus it has over 20k subscribers to it's subreddit in a little over two weeks, which is 5+k than litecoin.
Actually being used by the laymen, facebook demographic, bitcoin is more of a speculative commodity right now. If you check out /r/dogecoin it shows a lot of promise.