They could have been working on this way before us for sure, but it seems too much of a coincidence announcing it after our countless press releases regarding who is joining us and the mention of the referral program.
This only proves a company who got $75M in funding, has 2.400.000 users, 3.100.000 wallets, 40.000 merchants and 7.000 apps (according to this
https://www.coinbase.com/about), and a volume of $ 4,529,640 as of time of this writing,
sees our model as viable. Now think about it