Aren't we forgetting something? You skipped an important part of the scan effect:
(If succesfull) The raiders will return with 5% of the other player's credits and 10% of his/her current points. Your credits and points are increased by this amount and the other player's credits (but not points) are reduced accordingly.
There is definitly no player in the game who likes losing credits and points!
Walter, if you have any questions about the game, just ask.
I can answer in German and Dutch also ;-)