(3) Fluid has a deterimental effect at lengthier line span (when it exceeds 50-60 chars). Hence limited at 700 px.
(1)On HN visited links are read emails for me. Hence they are of not much use and thus same treatment as the dead link.
Also it is funny since the reason most people gave for requesting flushing commenter's name to left was that they upvote or downvote with help of points/commenter's name! Atleast that was my interpretation. I had thought of the exact opposite reason and hence put it in right earlier. Upvote should have nothing to do with who said it or how many points it has already received.
Not necessarily. While I'll agree with that the current score of the comment should have little to do with your vote, who said it is necessary for context. Consider this hypothetical comment:
"The backend code behind the current search functionality at google is absolutely horrible. The search ranking algorithm is pathetic to say the least."
Had this been said by an SEO guy or an employee of yahoo/bing, I'd have downvoted the comment. However, if it were a comment by Matt Cutts (http://news.ycombinator.com/user?id=Matt_Cutts), it presents itself in a whole different context. It's no longer a flamewar comment, but rather an admittance of areas where someone/something needs to improve.