I've adopted the policy for my own comments to delete (immediately) any comment that gets a downvote. I wonder how many other people do that. Despite believing

I've adopted the policy for my own comments to delete (immediately) any comment that gets a downvote. I wonder how many other people do that. Despite believing downvotes exist as a means of labeling content as not belonging here I hate when people delete their comments in response to any number of downvotes. Generally speaking, once you've added your comment it's become a part of the history of the discussion and I don't like said history being removed. Further, while I could see a certain nobility in people removing a comment because they see the community says it doesn't belong, most people doing so just don't want to harm their Imaginary Internet Point total and I have a strong distaste for people who put too much stock into that number.