5 per day is the wrong way I think.....i like to upvote comments a lot to express agreement/approval or thanks or simply to help distribution of Steem to those who are engaging and making an effort with Steemit. in addition to normal curation of posts I like, that's a lot of votes. If this change is to go ahead, the issue of showing approval or enabling low SP holders the ability to distribute rewards or views is a must. Engagement and building community is everything....we need the tools to be able to communicate effectively with each other. For too many, the experience on Steemit can feel worse than Reddit and Facebook when the impact of their engagement is minimal or they get hardly anything for their content, (and we all know it's not always a question of quality) because they have higher expectations. Encourage more engagement, not less......though I appreciate you are trying to make it harder for bots.