Basically you are selling a product (HBN) , sticking with only 1 exchange
(Even Thru Cryptopia is a Great Exchange) ,
is like only selling your product on only 1 side of a street and ignoring the other side.
You sell on Both Sides and Double your Customer Base.

But who is on the other side?
Do I understand you right, if I guess, on two exchanges the coin can be sold double as fast than now?