There are several exchanges like this, 2 that I know are Finexbox, mercatox, they have large withdrawal fees. Did you know mercatox charges a large withdrawal fee for Dogecoin? I was very surprised. 20 Dogecoin for one withdrawal at mercatox. But unfortunately Mercatox doesn't provide withdrawal access to Dogecoin at the moment, I don't understand why. For finexbox you can see some coins that have fake volume, like Vectorium coin, I have it, and it can't be exchanged. volume and price is a hoax there.
Finexbox is as fake as they come. I participated in the Vectorium bounty early last year or so, but more than 18 months after, their coin which was listed on Finexbox is not tradable. Vectorium and the exchange are busy trading blames. I also think Vectorium is a scam project