Auto voting may have the negative impacts. I completely agree but there are certain benefits of doing the same. Consider some one like me who is not regularly active on this platform but is still making some tokens. In such case there is no point in keeping it idle. Then i either sale it or power it up and delegate the power to some project. But again the whole amount can not be risked on single project, then auto voting helps me to get the income from curation as well.