Yea i see your point and concern. I fewl that the curation reward system is trying to solve a problem thats not even a problem. I think we should just do the easy and simple thing and then react if there are problems.
As an example whAtw we need is for people tonshow up
Every day in the site, be active read content, vote and comment. So why not gove rewards for users that show these activities?!?! Yes this can be games by bots. But lets not assume every user is going to abuse until we actually see the abuse be an issue.
Instead we have created a system that incentivices people to vote in a way that completely changes the most important things users are doing: telling the network what they like to a financial game that is best played by an algo/bot.
I would simply give rewards to users that show up daily, vote and comment. But let users comment and vote how they wish.