There might also be a clever software solution. I know Louie who works with the code base. If I write up some Python they might implement it. Something that automatically hides or collapses my contributions for people who haven't voted on my stuff an people who have more downvotes than upvotes. The same code could be used in future similar situations.
Wei Dai's Power Reader script has features along these lines that I find useful during those brief periods when troll-feeding takes over the recent-comments list. Of course, the automatic part is important, admittedly.
For my own part, I don't find your contributions less useful than the median.
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?