Ask HN: Can we get an option to "undead" comments?

It doesn't happen too often, but sometimes I see a comment that's dead which is really a very good comment. Often, I look at the history of the user to guess why it might be dead, and they have an active history of other good comments, so it's quite surprising. I assume they are false positives hit by a spam filter.

It seems like an easy fix would be to wire up an "undead" button to resuscitate dead comments (at least ones that were killed by an automatic filter.) If a handful of high-karma accounts undead a comment, then we can put it back. Abuse should be unlikely and easy to identify as such.

This seems like it would be an improvement over the status quo of either taking no action, or having someone else repost the comment with a note, which happens occasionally, but which is redundant and allocates karma incorrectly.

Here's the example that prompted this submission: http://news.ycombinator.com/item?id=2975387 This was the most informational comment in the thread, so it's a shame that many people can't see it.