Doge wasn't created as bitcoin or ether, is more like a funny coin to be used for fun pourpuse, that's why there's no limit mining them as well.
The devs left already DOGECOIN but luckily it is still alive and kicking because there are too many traders sees it's advantage of exchanging bitcoin to DOGE when sending to some exchanges because it has faster and lower fees than bitcoin. And when it was sent successfully then that will be the time to exchange it for bitcoin with lesser fees and it's quicker than the usual way of sending bitcoin.
Worth to mention, DogeCoin is built in the vision of memecoin, and we can see there are nothing except Dogecoin who can sustain until now. I believe many people will abandon Dogecoin. In term technical, DogeCoin has a fast and cheap transaction which it adds the value of the coin.
That's the only good thing with Dogecoin even though there are too many people that are dumping it everyday but it has some use. Every trader are treating Dogecoin as something that is good for exchange and temporary solution for the problems that are existing now with the bitcoin network. Many will start to abandon doge when bitcoin's problem are already solved.