Do you know why it is hard to add XRB to exchanges? Firstly, it is NOT a Litecoin clone - totally original and different tech. Second, each wallet needs to "mine" their TX by proof of work. SO imagine receiving and sending all those transactions by the exchanges and consuming CPU power. They have to dedicate two or three servers just for Raiblocks. For the individual user, it's ok but for a hub of many transactions?