[jimmydef]

i guess they can randomize the queue order so no one gets aan advantage by being in the queue first.

[Maxion]

There are still issues to solve. With a randomized queue order of matching trade pairs, in order for you to maximize the probability of your trade succeeding you could flood the market with buy or sell orders with price x and amount y.

Though I guess you could group orders by price & amount, which would negate some of this. Per trade fees could also help mitigate it.