And parent was saying that if done improperly the usage of such tools might be taken as a linguistic "smoking gun". So rather than risking that Kwon might have preferred doing it overtly, hoping for plausible deniablity in doing so.
Do Kwon had virtually unlimited resources for a good plan. My observation from the field (not knowing Kwon but other fraudsters) is that there is an overconfidence based on power. It falls like a house of cards when official prosecutors are involved. It works when everything is handled privately.