There are literally thousands of projects that pops up on a early basis and why do you think that these projects keeps creeping up, the sole reason is anyone could raise funds if they are able to convince the investors that they can make a quick buck and that is the reason you keep seeing all these projects popping up. I would not list Dogecoin in the list you mentioned as it is accepted in multiple gambling sites and merchants and that is the use case that is necessary for a coin.