Take two simple examples, the high-tier rewards in The Realm of Innocence generally have descriptive modes; first, the straightforward '???', and the other is 'randomly gain XXX'.
Although both are unknowns, according to Motan's guess, the former should belong to a fixed reward, meaning that the content under the question mark is already established and will not change regardless of who receives it.
The latter, however, is person-dependent. In this case, the item that the player who meets the reward conditions receives generally should not be too incompatible with themselves. If it is particularly ill-suited, for example, if a male player completes a task and gets in the random reward a set of [Hot Bikini] equipment solely for female players or special talents, then there are likely only two answers—either the system is messing with him, or that person is Kordo.
This is not a joke (though it is quite funny).
