I totally disagree with you
It seems that you are one side mind person.
Of course, I exchange my vote, and I donate my vote sometimes.
Selling vote is not the right expression.
There could be many behaviors in vote spreading.
One thing important is Steemit can not survive with the donation system.
What you want is the platform being survived with the donation.
The system must be competitive.
We already experienced this situation in the Korean community.
I definitely tell you "YOU ARE WRONG"