There are couple of things that need to be fixed so that Steemit becomes a fairer (not expecting utopian fairness) platform for all community members. At the moment it appears that financial might in the form of Steem Power (real or delegated) can be used for subversive purposes.
Related high net worth accounts are cross curating dubious content (just a post title and a link to a non-original YouTube video) and depleting the reward pool with no end in sight. In the meantime, we have to self police the platform with the help of the overworked steemcleaners.
Personally I'd like to see constitution based non-linear flagging to make matters better. Here is the simple overview:
We need a clearly defined constitution to decide which content gets flagged. Then we can use some algorithms (I thought this would need AI but a programmer told me that we don't need anything like an AI for the job) and post these spam content in a different tab.
We encourage people to flag and non-linear flags mean when more people flag, the more powerful the flag become. You can flag outside the spam/abuse tab but unless many people join you, your flags would have less impact. This gives a chance for people to flag content that escape the algorithm while making flag wars hard to continue.
We could even have a separate voting power for flagging abuse.
This is just my suggestion.