if you look this image carafully i'm sure you will understand mate
because the price excluding binance and other exchange
This is not only happening with drep, as far as i know if kimchi finance was getting a very big increase that more than 10000% at this moment and that's only trading on the gate.io.
It seems like that gateio becomes the next pump and dump exchange site.
Im actively using gateio and this site can be trusted and reliable. It looks like a real pump that happened with some garbage coins.