Today's announcement of the addition of 0x (ZRX) is great news as it shows that Coinbase is really working to add new assets to the exchange. It took them about 3 month from the initial announcement of the consideration to today. STEEM has many advantages but also some constraints so we need to demonstrate as a community the demand for the assets and SMTs will be a key factor I believe. Another positive sign is that STEEM is not only on the app for price tracking but also on the list of assets that Coinbase will offer custodial service for on their institutional offerings.