This comment on the One year later (followup to “I quit the tech industry”) is an interesting example of a comment that itself doesn’t add much and has a negative score. Yet, the comments in response to it are very much worth reading and thus I don’t think the entire subtree should be hidden by default. (IMHO.)
What do people think about adding an exemption to the rules so that comments with negative scores stays visible if its subtree as a whole is positive? A slight modification of this could be to take into account just a comment’s immediate responses.