I really liked that.
I brought it up with a few people, and the concerns that were raised were people just creating 10-20 (or however many would be needed) sock puppet accounts to get around it, or creating vote buying/trading hacks. Basically if you go after the people who are abusing the system, they will just adapt and find a new way to do it.
Glad to hear that. If it were to even be considered for the light of day it would have to have serious witness support.
I agree, abuse cannot be stopped. This is wisely noted in the whitepaper, where it's said that as long as abuse isn't rampant it's more or less okay. I feel like @rycharde 's point 13 is something that would raise the barrier to entry to serious abuse to be quite high. Managing that many accounts would take significantly more effort than always up voting yourself for example, or even just voting for your friends.
However it's not just about abuse, far from it. It's about encouraging the majority to vote outwards and to a variety of other posters. So for me it's a question of balancing the incentives around a vision of what kind of place we want to see and how to reward it.