Literally 60 minutes ago Coinbase fees changed to this:
0.25% taker fee
0% maker fee
The reason for doing this is to "increase liquidity". They must not gain much liquidity from users who trade less than $100,000 a month.
I also believe they've gotten rid of stop-loss orders, which will stop Ethereum from flash crashing into the dirt... which is good... or bad if you were looking to buy the dip on a $20 Ethereum flash crash.
If I'm being honest, I thought it was pretty crazy that one could get money onto Coinbase for free. Create a maker trade for zero fees, and then transfer the money offsite for free as well. I guess those days are over.