What I use is "don't make a top-level post if you think it is going to get downvoted". I'm open to better conventions. I suppose I could have got more karma if I wrote a sentence or two about how this is connected to rationality.

In this case, opening a thread on this seemed like a good idea because the question proposed by Nature does have an obvious correct answer.

If anyone wants to discuss this subject further, you can get some free karma if you start the 2010 meta-thread.