Actually, now that I think of it, is not only failing at censoring Alice, he is paying for her to have a nice income based on double spending.
Consider what happens every time Alice is able to push a transaction through on bittrex. This happens when the public miners beat the private miners (attackers) over a given 2 block interval. later comes along with his 51% attack and negates her transfer to bittrex because censorship is an ongoing process. Bittrex has credited her balance, but since
has negated her transaction from the block chain with all that censorship, she gets to send to bittrex again.
is conducting a 51% double spend attack on Alice's behalf instead of censoring her.
Derp.
RE: Dan Larimer Cannot Censor Accounts with 51% of Hashes