Jan 4, 2017, Brian Armstrong, CEO & Co-founder of Coinbase did a poll on Twitter.
https://twitter.com/brian_armstrong/status/816866469384306690?lang=en
- brian_armstrong
In the poll, the top coins included, NAV, Ripple, Waves, Litecoin, Monero, Dash and Eth Classic.
Brian immediately ignores NAV because that was not even on the list. He then says, "Litecoin, Monero and Dash look the most real.."
Litecoin was then added to Coinbase in May 2017. Ripple and Dash meet all of the GDAX Digital Asset Framework guidelines: https://www.gdax.com/static/digital-asset-framework-2017-11.pdf
Monero (being a pretty solid privacy coin) might have some issues with anti-money laundering (AML) laws that GDAX and Coinbase have to be compliant with. But then again other cryptocurrency exchanges are allowing Monero with no issues so perhaps if Monero and other hardcore privacy cryptos (treated like cash) are just exchanged there is no issues (?).
These are my top picks for the next Coinbase addon for 2018:
Ripple, Dash, Monero!