When the system count is twice or more than the average player count, having the list catalyzes interaction by enabling players to actively seek it out. If you don't think players should be able to do that, and all encounters should be determined randomly, you are effectively forcing players to be NPCs.
A way a lone a last a loved a long the riverrun, past Eve and Adam's, from swerve of shore to bend of bay,
brings us by a commodius vicus of recirculation back to Howth Castle and Environs.
