Wouldn't go _that_ far, but surely there are people working to get rid of this kind of post, which is certainly a problem. And it should be easy to find out what accounts are abusing the "dead" flag and punish those.
HN guidelines state that if it is a story that will be found easily on a mainstream news site, it is probably not a good submission for HN. I flag political posts fairly regularly because there are plenty of other places to have those conversations besides HN.
