Assuming that a user is on the ignore list and his/her comments are not visible anymore in the comment section of a post: If other comments or even a sequence of comments refer to the (invisible) comment(s) of the blocked user, will the discussion as a whole still be readable/meaningful when parts of the discussion are missing? (In case of a troll or bully, it is very unlikely though, that the discussion is of any value anyhow, but invisible comments might affect the quality of “normal” discussions.)