it's not the most necessary part for now
it's only problem in an otherwise working economy where most rewards are going to half decent content that people will try to hide their vote farming by spamming 10-50c posts over hundreds of accounts etc. as this would likely beat out curation in returns
but we can worry about that once we get to a better economy. 50% curation and extra downvotes are essential, although I think 100% separate downvote pool is far too excessive
but really, anything is better than what we have right now unless you actively try to screw things up
Agreed, anything is better than nothing.