Continuing the discussion from Token names in the Sovryn UI:
I think the reason the liquidity pools are named just “USDT”, “DOC”, etc is that RBTC is the base asset on all trading pairs. This is hardcoded into the protocol. Every pair must use RBTC as the base asset. So it’s possible the designer thought it would be redundant to list RBTC as the base asset on every pair (however I don’t want to speak for whoever made that decision – this is just a hunch) since once you know RBTC is the base asset on all pairs, you don’t need to see it listed in the pool drop down.