Thanks all for the nxt leasing offers. I still need to investigate the code with more detail first...
You can try attacking MMXIV if you want, but it won't work
Of course it will work, for this simple unsofisticated attack I only need 600 coins and 30 days. 600 MMXIV: that's 5% of the supply. Less than 9 BTC at current rates. Anyone cares to donate?
btc here: 1EqekC9YVhiWLYjG3mfKNJwrf5s3YS46WW
A more complex attack may need even less. I think that with 2,8
BTC I have a 50% chance of 6 blocks in a row every day, but I haven't tested the math behind this....
And you have it wrong in your wiki: "someone holding 50% of the currency will generate 50% of all proof-of-stake coin blocks". Of course not. Someone that can stake 50% of the coins acively at stake will generate 50% of blocks. But that's much less than 50% of the currency.