Simple two questions, any advice as to whether to be concerned to either transfer the coins to a hard wallet from Coinbase prior to the Aug 1st or not really needed?
2nd, is this Aug 1st situation going to kill the value of Bitcoin?
As jonald said, I'm starting to believe there is no chance of UASF to succeed. It is much more likely that segwit2x is the winner solution.
Just make sure to keep your coins stored in a wallet you control the keys. That way, you are the one controlling your coins future in case of a possible chain split. More reasons to not hold your Bitcoins on a web wallet/exchange.