You can mine and transfer straight to your iceCUBED account however there are some things to keep in mind.
1. You need to be aware of the minimum deposit amount. If the transfer from your mining is less than the minimum amount, you will not receive the transfer as the trading fees will eat up the whole amount.
2. There are sometimes address changes for your account. We always suggest your make a deposit request on the site which will provide the most up to date details, and you will not get this with sending your mining revenue.
3. We are not a wallet. You will not have access or control over the private keys for your account balance. This will also mean you cannot take advantage of any forks.