I recently strong-downvoted a post that I would have weak-upvoted if it had been at a lower karma. In general, I usually vote primarily based on what I think the total karma should be. I'm curious whether other people do similar things.
This is both a question and a poll. The poll is in the comments; it works via upvotes but there is a karma balance comment. (Note that one can recover the non-weighted results (i.e., number of votes) by hovering one's mouse over the current score.) This is about votes on LessWrong only.
I'm also wondering whether this behavior is, in some sense, anti-virtuous. If everyone votes based on what they think the total karma should be, then a post's karma reflects [a weighted average of opinions on what the post's total karma should be] rather than [a weighted average of opinions on the post]. This feels worse, though I'm not entirely sure that it is.
Correction: as jimmy points out, voting independently of current karma does not give you a weighted average of opinions on the post because there are only a limited number of ways you can vote.
Meta: There's been some speculation about this (maybe read after voting), but nothing conclusive.
Current non-weighted results (08/28 07:05 EDT) (TK is 'target karma'.)

I am inclined to take your strong language as expressive, kind of like Shia LaBeouf roaring at me.
But in case not, I think it's good to remember Your Price For Joining.
The voting system is overall doing its job well. Great posts reliably find their way to the top, we're not overrun by newbies taking all the attention (I claim), and a number of other good things.
If I find out a lot of people this whole time have been voting using an algorithm that seems bad to me... it's not my favorite thing, but I can live with it, clearly. I won't escalate very much on that fight, and I don't think it's worth it to escalate too much.
I don't mean with this comment to take an object level stance on the question at hand.