As the poster of one of those comments I was rather irritated by the adjusted datestamp and doubted my own memory. Has there ever been discussion for the HN software to enable more metadata for moved comments, like "10 days (older thread)" or such?
I'm not averse to encoding more metadata in the HTML if people would actually use it, but I'm averse to displaying that sort of thing in the UI because I fear the downside would outweigh the upside.
I wish my comment history ("threads" link at top of every page) would adjust to push the comment up so I'd be more likely to see the thread again or notice any replies without counting on email alerts.