Coinbase has announced that starting May 21 they will stop paying miners fees. It's been one of the big draws of using coinbase as a wallet and obviously become unaffordable to them as well.
If you have a trusty trezor and bitcoins on the exchange. . . there are few days to move your coins for free.
This is just another example of how the bitcoin ecosystem is changing in a negative way because bitcoin no longer is a really viable payment network. Hopefully that changes soon.