The Bad Touch
Sadly, I think Rael is missing the point of keeping the original date: Blosxom bases the URLs for your entries on the date. If you edit the post after it's been published, the edit "rises" on the page -- and so does the permanent URL! It's not very permanent if it changes every time you edit the damn post.
Thanks to blosxom, I've become a Shaolin master at the creaky semantics of touch(1).