RE: Vote selling hasn't been affected by the fall of minnowbooster
The first post that I made on steemit (more than a year ago) was a complaint about voting bots. As I learned more about the platform and blockchains in general I realized that bots can't be stopped.
Over time I realized that the Steem blockchain is much more than steemit or the social media applications that are being built around it. A good example is utopian.io which is a platform that uses steem to reward contributions to open source projects.
With the upcoming launch of the Smart Media Tokens protocol a whole new avenue will open up for anyone bold and creative enough to build new applications on top of the Steem blockchain.
There is an old post from @dantheman that sheds some light as to what can be done with this technology (it opened my eyes...especially the part where it mentions that we don't need permission from steemit.inc):
https://steemit.com/steem/@dantheman/how-anyone-can-build-custom-apps-on-steem-right-now