The second case uses API to place fake orders to create a false impression of activity. Isn't this the same as exchange wash trading? Now they're directly playing it on the chain.

The Financial Services Commission (FSC) of South Korea has referred two suspected cryptocurrency market manipulation cases to prosecutors. The first involves a whale using tens of billions of Korean won over several months to control nearly half of the global circulating supply and manipulate token prices; the second involves creating the appearance of active trading by placing orders through an API and using high-priced orders on a web page. The FSC warns that pump-and-dump schemes by whales could cause sharp price drops.