[louwhopley]

If a few lines of code can easily achieve this, then why would some of the big exchanges not have a team (of even 1 engineer) apply this tactic against all the other exchanges?

This would quickly result in washing out all fake volumes across the market.

[tim333]

What the guy was doing was basically just market making. It only went odd here because the exchange bots were making dumb trades against him. Which probably wouldn't happen most places though you never know.