Whenever you guys finished teaching bitcoin to some newbies and lure them into running a full node
lets go back to the topic shall we?
Blockchain.info is a free web wallet with the ability to run with millions of bitcoins at any given moment in time, that said, people using coinbase provide ID because they are buying I just don't know why would they keep using them as a wallet after they have bought the coins?
Moreover, if blockchain.info asked me for ID I'd give them a middle finger and go use either my expensive full node
or my old friend Electrum no one pointed a gun at my head forcing me to use them as a must.