Indeed. My first comment was downvoted as well, probably because I am talking to an agitator. And yours are being downvoted because you continue to exist. It's all rather disheartening, like watching a crowd throw rotten tomatoes at an earnest but unpopular performer.
I still don't understand your goal, though. You appear to be trying to manipulate everyone's model of you such that we expect that your posts will violate community norms. It's not even about "credibility," and I was actually going to start out suggesting that we taboo "credibility." If you don't use that word, what you're doing is "systematically violating community norms without explaining a reason" and is usually called trolling, and I think most people here assume it is trolling, and maybe I'm a fool for even considering that it might not be trolling.
Back when I was an ardent warrior of Political Party A, I used to go to forums dominated by Political Party B and post inflammatory things. I would have, at the time, defended these posts as honest attempts to spark discussion and educate. In retrospect, I admit that I was trolling, because there was no education happening. You can save yourself a lot of time, therefor, by considering your goals and considering your results.
Thank you for your cooperation and understanding. Don't worry, there won't be future posts like this, so you don't have to delete my LessWrong account, and anyway I could make another, and another.
But since you've dared to read this far:
Credibility. Should you maximize it, or minimize it? Have I made an error?
Discuss.
Don't be shallow, don't just consider the obvious points. Consider that I've thought about this for many, many hours, and that you don't have any privileged information. Whence our disagreement, if one exists?