Is that safe to have in Blockchain.info more than 10 BTC ?
No worries ?
NO, its not safe at all. I don't care what others tell you here, its absolutely nuts to even think of keeping that much BTC there.
Web wallets should only be used when you have no other option and even then it should be used to keep very small amounts, I'd say less than half a bitcoin.
100% agree. How much would you keep in your leather wallet if you were going to that really bad neighbourhood Close to you? That's how much I would trust blockchain.info. There are literally 100s of better, safer or more secure options. Don't be left holding an empty wallet.