Mads

I'm also interested in this feature. If an article has poor ratings, I'll update it, but the poor rating remains. This could bias users against reading that article, and may make them mistrust the information in it.

As for my own tracking for helpfulness data, in Zendesk Insights, it would be useful to be able to see the graph for specific articles instead of the overall Guide helpfulness graph.

To Rob's point, creating a new article to reset the ratings isn't a good solution because then all links to the old article will break (if a redirects feature existed, that would help).