I know when you submit a link, HN will usually automatically omit the " - Site Name" part at the end of the title.

Given the proliferation of FeedBurner links, why can't pg do the same to get rid of utm cruft?

Is it really that big of an issue to let some site accurately track the source of their referral traffic? That's all UTM codes do by the way--it isn't anything nefarious.