Current reputation based approaches to avoid unwanted interactions assume that
agents decide by themselves whether an interaction with another should happen.
Therefore, the main issue is how to assess an agent's reputation as quickly and
accurately as possible. We propose a system in which requests for interaction are
routed through a web of trust, and feedback of the interactions is limited to those
agents that routed the interaction request. Then we show that when agents use a
reputation based approach to decide how to route the requests, the percentage of
satisfactory interactions increases.