To get you an idea;
After the collapse of Cryptsy, so many coins have been abandoned, died, and so on.
USDE, has always been alive but without a concrete communion.
For a while he was locked up on Alcurex, I do not know if it is still there.
Personally, I was opening my wallet every 3,4 months for sync, I knew that one day it was reborn.
All the same, I mean, the old coins have a higher value than other garbage that is born like mushrooms (ICO) for example.
To let you know what I did with Html5, before Cryptsy went bankrupt, I managed to get out with a large amount of coins.
I know other coins, Tek, Hyper, Colossuscoin etc, etc...