Vote trading is the same as self-voting, buying profitable votes is still the same thing that goes against the EIP. We have 1 user focusing on downvotes lately so it's not like we're giving it our all attention hence some times some votes get downvoted a bit too much or not enough.
Anyway, I agree we should put more effort into spreading the word about Steem and even better onboarding users and guiding them through the learning curve. Feel free to join our onboarding program to help out with that.