I still think this would be a good idea: Vote Negation
Pros:
Less time spent on finding each and every post/comment to oppose.
Less "blockchain bloat" (which isn't actually a real issue under bandwidth and RC in the first place)
More demand for SP. I maintain that downvotes lead to buy pressure. This is more efficient than downvoteing, so as such, would lead to even more buy pressure.
Improved Trending Page. Debatable, but I think it's a reasonable leap.
Cons:
Hard to understand. I agree, this is probably the most "inside baseball" idea. New users would not understand it, prima facie.
Already possible with off-chain logic. If you write a good bot to oppose every action of a particular user, you can achieve the same effect, so why add an on-chain solution?
"It's Censorship!"
Dan thought of it.
What do you want me to do? LEAVE? Then they'll keep being wrong!