Pretty sure you will get the same answere from coinbase since they black list you for transferring Bitcoin to known gambling sites.
So what would you suggest? I see you have some betting site in the signature, is it your site? if yes, which wallet provider you are using for that site?
Any thoughts on using blockchain.info?
Most sites run their own clients in a secure manner. Cold storage is your best bet with a hot wallet for withdrawing funds.
This signature is paid by a campaign, although I did make it and put links to my own affiliate page to build a residual income. My signature started the Betcoin campaign but we could not come to an agreement on how much for my services. That is why it is the only one of its kind.
I have no opinion on blockchain.info since I do not use them. Heard good and bad, most of the bad was years ago though.