Bancor frontrunning, EOS spamming and now 51%
Bancor
https://hackernoon.com/front-running-bancor-in-150-lines-of-python-with-ethereum-api-d5e2bfd0d798
EOS
https://coindecode.io/how-swim-made-thousands-gaming-the-eos-crowdsale/
All of these transactions are sending an invalid transaction, with an abnormally large gas price of 100.2. Because of the high price, miners are prioritzing these spam transactions over real, lower priced transactions.
The bottom line is - with big enough carrot - instant money - there will be always some hackers... But are they hackers? Code is the law, everything is in public, anyone can do this ! ! ! ! ! ! ! ! ! ! ! !
That's the beauty of it - anyone can do this - the code is out there... I'm looking for home, I'm looking for my base. @astralship might be OK for now but I'm looking for a place with more Ethereum hackers.