[gnosis]

An interesting idea. But what would stop someone from continuously creating new accounts until they got an account which could see the scores?

[michael_nielsen]

You could exclude recently created or low-karma accounts, or at least track them separately. Indeed, there are many subgroups of HN users it might be interesting to track. E.g., new users, or users who've had accounts for a long time, or users with particularly high average comment scores, etc.