A few other MMOs have the idea of map participation, meaning that you have to contribute a lot to a event/meta occasion before you start earning the much better rewards out of it. And the best rewards are only handed out to people who reach quite high levels of contribution/participation from the occasion. I think a similar strategy for elite boss benefits could take away a large part buy Maplestory 2 Mesos of the toxicity and camping that surrounds elite boss searching.

Simply speaking, you may only obtain contribution if you're in the map's level range. And for mobs under level 200, if you're more than 5 degrees above the mob you become reduced participation. At this time I envision contribution like a mix of murdering dinosaurs at the map to help MS Mesos spawn the elite supervisor, and damage dealt to the elite supervisor. In this way, players who elite search can still get a tiny bit of map contribution, but the players who actually put in the job to spawn the elite will probably get the better rewards.