I realized by accident that I can post without having a title. Isn't it like asides? Is this a feature that I can safely use?
I have heard people remind me over and over that WordPress can mess up your permalinks if you do not include dates in permalinks.
However I found that WP does actually recognize and correct the situation. So even if I have Happy New Year in two posts in a blog where date is not part of the permalink, WP automatically changes the new permalink to avoid duplication.
Again I am assuming this is a features 9and a good one at that).