Yes, indeed I meant that "Each of our assessment of value is a private right. It is the very essence of voting". We up- and downvote for all the right and wrong reasons one can think of. And we only have to answer to our own conscience for such voting.

Of course there is nothing wrong with expressing from time to time our personal ideas about how one should vote. See it as the public statements made by politicians around election time. But alone in the voting booth, it is again you and your conscience.

And nobody should try to put someone extra in the voting booth to check if you are voting the right way.

I guess that is what I find a bit unsettling about the OP's suggestions. For instance "Penalizing upvotes where some sufficient (...) ratio of Monks have downvoted a node". It is the equivalent of someone looking over your shoulder to check if you have voted the way a good boy (or girl) should have done.

Freedom of conscience -- freedom of speech -- freedom to vote anyway you like. Some rights just cannot stand any restrictions.