What I mean is, yes they have a really low liquidity. I was hoping that one day we could see very low exchange rates between stable coins. One good feature is that there was support for the HBD/BUSD pair. As an experiment I put sales of HBD/BUSD and back at very low spreads but small amounts. So that one could move value between blockchains with low friction. I was hoping it could be, but I couldn't make 20% per year off of the spread because there wasn't enough volume there even with a tiny amount invested on both sides. I think I'll make more just leaving dollars in savings. Now that TribalDex has that pair, you can normally get a very good price changing dollars for dollars that way.
The exchange added more friction with higher withdrawal fees and higher exchange fees, so I don't see much future there trading between those stablecoins.