The amount is configurable and the feature can be turned off.
You as the receiver keep 70% of the fee.
Think of how quickly spam would go away.
It could easily set up thousands of people as unknowing patsies to commit mass terrorist acts, just by giving the AI a small amount of crypto to use in "paying people for gig work" to do tasks. It could start people off with busywork like ferrying harmless packages back and forth, and the ones who proved reliable, eventually would get a much less harmless package to be delivered somewhere sensitive.
That could all be orchestrated by human terrorists of course, but it's so much more effective if they could do it in 100 cities at once without almost any (knowing) human labor, and without any detectable foreign involvement.