Notoriety: Hitlist comes with notoriety. When a player is hitlisted - his Notoriety increases. Which means his effective level goes up. It enables higher level players to attack him.
With each hit order, the notoriety increase by 10%. So, if the Maximum 5 3 Hits are ordered on a player, his Notoriety will be 5030% and his Effective level will be 5030% higher than his current level.
For example, if a Level 20 Player is Hitlisted once - his notoriety becomes 10% and his Effective Level becomes - 22. So now, players with an attack range down to 22 can claim his Bounty. If more players list him and as his notoriety reaches 5030% - his effective level becomes - 3026. Now even higher level players can attack and claim his bounty.