It is meant to reveal the subjective nature of your position. It appears to me that you set yourself up as judge, jury and executioner of what you deem to be an acceptable allotment of the reward pool. It seems to imply that your privilege of greater stake gives your opinion a greater moral high ground.

There have been past down voting wars over the very issue of self voting. Perhaps they pre-dated your arrival. It only goes to show the subjectivity of the voting system on this broken governance known as DPoS.