some thoughts:
The system probably needs to focus more on rewarding quality bloggers (blogs) over rewarding single content. Should center more around crediting the blog account for number of subscriptions, kind of like Utube subscriptions. However In this case the blogger would received an automatic number of (weekly??) up votes based on the number of subscribers and the SteemPower that those subscribers hold.

The second thing is that there should be a more granular system of up- voting.....something like High, Medium, Low. This will insure that the up votes apply more appropriately. Right now the up votes are binary. Ether you get the vote or you don't. However quality content is judged on a number of varying perimeters. ie.... the quality of information provided, the time and effort invested, the intent of the blogger. Therefore curators should have the ability to award, for example 25%, 50%, or 100% of a vote. This will help to more equitably and precisely allocate the organizations resources.

All that said. Steemit management is an A class team. I'm sure they are working on some excellent solutions.