It means there is no reason for it to go down, people do not think it is a scam, people do not think it will make them billionaires, people do not think about it at all. That causes most of doge in the world to stay in wallets and not move at all, most of it is actually in cold storage of exchanges probably. That is why I believe at the end of the day if you are not cared at all that will cause you to stay around the same price. If there was care on it and there was love or hate for it the price would have changed accordingly but people are ignoring it.
Agree, people use dogecoin as a transfer tool because of its low cost and not use it as an investment asset for the long term. The price of Dogecoin against USD tends to follow Bitcoin and I think this is what makes Dogecoin able to survive even though initially only as a meme