So if blockchain.info isn't considered an secure wallet, why a lot of people use this wallet? Dumb?
There's a lot of wallets there, if one day this site got hacked, the bitcoin price will go to the ground...
Actually blockchain.info have nice and easy to understand user interface and they are client based. Also their web wallets, mobile wallets and browser wallet are easy to use.
As blockchain.info is client side encrypted (
https://blockchain.info/wallet/features), i don't think hacker will have any luck on moving users fund out of it. I also use them but not for high amount of bitcoin.