These are the scams I've witnessed myself in the last six months and how much the scammers got away with. I know there are a lot more but these are the ones I saw first hand.
EthDark: a scammy shitcoin - At least 2 million usd
Litecoin gold- scam erc20 token- Around 200k usd
Ethereum cash- scam erc20 token - anywhere from 100k-1m hard to tell
Ethereum lite- scam erc20 token - at least 70k usd made in one weekend
Denaro ICO- straight up scam, devs left with at least 10million
Stone- Fake private dag crypto coin- Scammer got at least 300k usd
Confido- another scam ico, scammers made away with 500k usd.
Bitcoinred- another erc20 scam token.- AT least 1 million +
Mooncoin- 62 billion coins that were stolen from cryptsy were not locked, and dumped over 1 mill usd.
Wifi global- another scam ICO- at least 500k usd.
Sometimes I wonder the level of how people are so dumb in parting away with their money and because situations like this that scammers can get away with it, gives other the motivation to pull the same stunt because there is a chance they will make more money. With all of the noise about ICOs and now joining the league Forks, a whole lot still fall for the nice graphics design, the polished team with fake LinkedIn profile already set up, flashing website and some exchange sites whose primary concern is the fee they will get.
If all of this can happen in six months, I give up hope on whether the crypto world would ever gets better and investments would be more secure but its actually not their fault, its the people whose greediness and quest for riches have been blinded their level of reasoning that they forgo the basic intelligence gathering they would have done.