Bitcoin payments are currently processed with either no fees or extremely small fees. Users may include fees with transactions to receive priority processing, which results in faster confirmation of transactions by the network. Additionally, merchant processors exist to assist merchants in processing transactions, converting bitcoins to fiat currency and depositing funds directly into merchants� bank accounts daily. As these services are based on Bitcoin, they can be offered for much lower fees than with PayPal or credit card networks.
I highly recommend that you pull all your Bitcoin from coinbase and put it in a private wallet where you control the keys.

conclousion
Exchanges and gatekeepers actually have not to be worried about what will happen on or after August, 1th.
They will, again, profit from it in any case.
Ask yourself if this is the new wonderworld you want to live in.
What is the difference to banks if they make the rules?
Ask yourself if you really want to keep using services like Coinbase, if they keep what is yours, without announcing they don´t use it for theirself.
From my perspective moves like this are a sign that I can not trust them. It´s just nasty if they keep what is yours.
And, ask yourself if YOU want to support any fork.
They just bring insecurities into the crypto market.
If this hardfork initiators think they do it better then the mass and if they don´t follow the democratic choice of the community, then they can do their own thing.
But from the scratch, starting with 0 balance on that fucking "new" blockchain.