I just made a topic where I had gauged the light gains of shared dragons versus single groups per dragon camp, as well as other "Feeble" values. Basically, the amount drops harder than a ton of bricks, from a noticeable growth per few kills to hardly any effect visible to the naked human eye per few kills.

If anything I hope such discussions as this raise awareness of how much damage sharing the dragons actually does, and maybe, just maybe, promotes constructive action from SE.