Nice research, I appreciate you share here whatever coin you have found. Dogecoin is still a useless altcoin and it is the only meme coin I have invested in when it hit the crypto market. Maybe the next meme coin will be Banana or another one, but Elon Musk will never create a hype around it again, imo. Invest safely. Otherwise, the traders will likely put the money in the project which they have seen on the Bitcointalk forum. It is not going to pay for me if it has paid to someone else.
yes it was launched as a "meme" but isn't useless, this is a mistake since a lot of websites (including exchanges are accepting it).
you can save tons of satoshi fees if you use dogecoin for your transactions or if you want exchange coins between two exchanges. Plus confirmation are very fast and it's blockchain seems much more secured respect other blockchain that suffers of 51% attack.