Snark isn't the same as rationality.

Let's break it down, shall we? The comment contains the following three things:

1. A joke insinuating "rational programming" is the same as "rational toothpaste". No claim is made explicitly, so no rebuttal can be made. This is pure dark arts if you ask me.
2. Negative instruction: Don't do this. No attempt to explain why.
3. Positive instruction: Do that instead. Again, no attempt to explain why.

And you think this is more rational than the detailed, respectful, intelligent comments made by people who actually thought about the questions for five minutes and shared their expertise?

I'm appalled.

Maybe it's obvious to you that having "most rational X" in the title is stupid. And to be honest in hindsight it seems a bit silly to me as well, now that I have explicitly thought about the reasons for it. But it wasn't obvious when I wrote it, and it surely isn't self-evident to everybody.

I'm not against setting up norms and rules, and yes they are gonna change on people, and yes people need to be humiliated from time to time for breaking them flagrantly, but it's simply unfair to make humiliating jokes in retaliation for breaking them when there is no actual reason for the person to have known about the norm's existence.

Note that Konkvistador didn't even have a link to a top level post to substantiate the claim that this norm exists, just "I think this has been mentioned before" -- am I supposed to read every comment on LessWrong to see what norms I'm supposed to be following?

Give me a break!