Hmm, I really don't know where to start with the misinformation that you're spreading here...
The DAO issue was early in the lifetime of Ethereum, and indeed was a "bad contract", ETH was forked due to the scale of the hack and that it was still a new usage of the cryptocurrency. This is the only time that Ethereum forked because of a hack. People are a lot more careful about how contracts are written after this.
The CoinDash ICO hack was caused by someone hacking the site, and replacing the Ethereum address for the ICO - this is like a hacker hacking into a company site and modifying the bank details for payment - customers paid into the wrong "account". This is not a hack of Ethereum, and nothing to do with the way smart contracts work - it can be done with fiat currency by changing bank details, or any other cryptocurrency (including Bitcoin) by changing the wallet address.
The Parity wallet hack was a sloppy 3rd party wallet implementation - again, if you use 3rd party software for any financial transactions you need to be really sure that you trust the software - this is also not a hack of Ethereum, it was a hack of a 3rd party wallet implemntation - again nothing to do with smart contracts and could have happened for another cryptocurrency wallet (such as a Bitcoin 3rd party wallet).
The Classic Ether Wallet hack was also a hacker taking control of a 3rd party wallet - the same warnings apply as for the Parity wallet hack - again nothing to do with Ethereum smart contracts.
The hack under discussion in this article was a hack of Veritaseum - their VERI tokens were stolen, and these were sold for Ethereum - again, nothing to do with any hack on Ethereum, it was just the cyrptocurrency that the hackers exchanged for their stolen property. They could have sold VERI for Bitcoin, USD, or cheese and it wouldn't make this a Bitcoin, USD, or cheese issue...just as this is not an Ethereum issue.
-- Pete.