It's not so much that people wont vote but it will change who votes and the quality of the votes. If I can vote without any concern for quality then for sure I'll vote more stuff up but when I'm curating then I have to vote according to some rules or patterns or based on how valuable I think the information in the post is to the rest of the network.
Unfortunately this network has a data sample which is so small and so few people that we really can't say for sure what will come of it. I think curation for example with 100,000 users with current mechanism design will be vastly more effective than with 10,000 users. I think the more users you have when you're following the evolutionary method the more accurate things get so in a way it's a sort of swarm intelligence which should get smarter as there are more voters.
However right now voting power is concentrated so whales exist which skew the voting power. I think in theory we can solve the problem with the votes but only after voting power is more distributed. I like the proxy voting idea, I like bots, I even like whales, but I think we need more diversity among the whales because right now the whales seem to vote too much alike. This whale swarm produces a pattern which some people might eventually figure out and develop bots to game as part of a strategy but then if there are many more whales that becomes harder.