While I would love for this to be a thing, most cryptocurrency enthusiasts seem to distrust anything and everyone. How would one develop an oracle trusted enough that it would be accurate while not being vulnerable to sudden betrayals? There are for example plenty of stories from Eve Online (closest example of a lawless/trustless universe) where a very trusted middleman suddenly changed behavior when the benefits became great enough.

Especially when a cryptocoin includes strong anonymity, betrayal has very low downside since no retribution would be possible. However even if such anonymity is not present, it may not be possible to get retribution if the entity on the other side is (for example) the mafia.