|go ahead... be a heretic|
This makes the most sense to me, so far.
I do, however, think the current node_id system works very cleanly most of the time. There are a few situations (like right after submitting a post) where it is more difficult to find the node id, but [id://123456] is the only internal linking method I use, anymore. It is clean, almost always easy (just look in the location bar, or mouse-over a link to get the lastnode_id) and precise.
There are certain situations where the id:// method does actually convert to the full <nobr><a href=index.pl?node_id=12345></nobr>, so I imagine c-era's suggestion would be easiest to implement.
I think I would encourage our fearless leader to address this issue, because the "add-my-name-to-the-title-just-to-make-it-unique" thing only serves to clutter, not clarify. kudra first posted her titling method to encourage us to make titles more informative. How much does it help you to read in Newest Nodes <nobr>"(Russ) Re: Threading"?</nobr>
If the site could address the underlying problem causing us to do this, I think we will all be well-served.
In reply to RE:(2) Threading (resolve title conflicts at post time)