zlacker

On the site proper, I think flagged stories that have lots of comments are still shown in the Active list (follow the link to Lists at the bottom). But easier may be to view outside sites such as http://hnrankings.info (look for sharp drops in position and lines that end before the right side of the graph) or http://hckrnews.com (look for DEAD in the title or a blank in the number of comments).

>>nkurz+(OP)
Thanks. In that case, I'd like to suggest to dang, et al, that HN make flagging behavior and its results more visible. If we have to read tea leaves to find out what's being excluded and have no idea who's excluding it, that seems like a dangerous situation. And one where, as we can see in the thread, it allows people to be pretty paranoid.