@raj808 Holy crap open the floodgates, lol! Nice post and very robust though, lots of insight and potential ideas.
There are many factors as to why we are in the current state of system exploits and why this standard post/blog model fails on its own (without a ton of intervention which is being talked about here), but a number of them boil down to the incentive structures for OPs 'original posters/authors'. While the core of the incentive is valid (post/create "quality" content and be rewarded) there are a slew of exploit incentives which form around it due to such emphasis being placed on the original content.
As an alternate path to some of those network based proposals, I am developing a Steem app now which aims to mitigate some of these issues (sure as hell not all) by reframing the model in which post and curation is derived. The premise I have is simple and straightforward, and hope to release and test it out in action here soon (6 weeks or so). The basic idea is to not put so much emphasis on the OP in terms of robustness, but to incentivize the curation/contributions from other users therein.
I will definitely be talking about it more as the project develops as I want to get as many eyes on this thing as I can. And as an organic OP that is one is the hardest things to achieve without a 'historic following' or paying for upvotes and/or resteems (which while I do not like bidbots they do offer an unfortunate utility.. promote yourself).