Has it ever been considered to remove certain quests for the Kappa quest line? Quests such as "capturing outposts" force you to camp somewhat low traffic areas for hours on end. When the only people you kill are low level players doing early game quests (this is the worst on shoreline). So it is just frustrating for both the high level player trying to get Kappa. (Multiple hours afk waiting for someone to show up). And new players doing early quests. They will get killed by someone high level who has no choice but to just camp and wait.
Either a rework of that quest (eg move the kill area) or removing from the kappa quest line
the whole kappa endgame is a temporary thing