i am sure that there are many big whales that put their money in dogecoin and playing with the dogecoin because when we see in the market, the order buy and order sell is really in big amount and i think its the biggest one of the coins that is supported by many orders. dogecoin will have a future and will still remain in the market exchange. many traders is like to trade dogecoin or doing another purpose like playing gambling with the dogecoin.
Yes - traders love doge because it is liquid and traded across most of the exchanges.
The other factor people need to consider, is that on the biggest exchage, Poloniex, there are only a few coins to trade (because they delisted a while bunch). So if you are a professional trader, you are essentially cycling in and out of a few coins, and when there is new money, it gets funnelled into teh few coins listed on Poloniex, which is why they are all surging.