Houston, we (The Taverners) faced a problem today, revisiting this post on meta.SO: What's the joke in the Stack Overflow 404 page code?
The accounts of none of the posters has been removed. Yet . . .
Yes, there should be room, but since the 404 is an image, it would be somewhat difficult to convey whitespace :) – Mark Rushakoff Nov 10 '09 at 23:19
(There should be a link to @Mark's profile page, but there isn't)
This doesn't happen on meta.SO only. The comments on Should personal computer-troubleshooting questions be asked on SF? on meta.SU aren't clickable either. However, How to ask great questions (On meta.SE) doesn't suffer the same symptom.
The only thing the former two posts have in common is they're both very, very old, but the third post is also old. This could be the cause, but how? What has happened? Can it be fixed, please?